Circuit Protection Selection Guide Circuit Protection Solutions
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Bourns
Circuit Protection Selection Guide
Circuit Protection Solutions
Bourns Mission
goal satisfy customers global basis while achieving sound growth with technological products innovative design, superior quality exceptional value. commit ourselves excellence, continuous improvement people, technologies, systems, products services, industry leadership highest level integrity.
Table Contents
Introduction Protection Needed Bourns® Circuit Protection Products Select Appropriate Device your Application
Network Diagram Generic Circuit Diagrams Central Office (CO) Customer Premises (CPE) Voice Protection ADSL Splitter with Primary T1/E1 Application Technology Applications Power over Ethernet Product Selection Tables Telecom Line Protection Customer Premises Equipment Protection
Overvoltage Protection Components
Discharge Tubes Thyristor Surge Protectors Diodes Transient Voltage Suppressor Diodes
Overcurrent Protection Components
Multifuse® Polymer PTCS LPMs Line Protection Modules Telefuse- Telecom Fuses
Protection Components
Protection Overview ChipGuard® Multilayer Varistors Diode Arrays protection
Outside Plant
Outside Plant Products Signaling Protectors
Other Related Products Capabilities
Transformers Module Solution Capability DC-DC Converters
Which Protection Technology Right Equipment Telecommunications Standards Recommendation Summary
Introduction
Bourns pleased present this comprehensive guide Telecom Circuit Protection, encompassing broad range technologies products. This guide will provide background information selection recommendations needed ensure that your next project achieves level cost-effective field reliability demanded today's customers. Bourns commissioned survey telecom circuit protection users worldwide determine their priorities needs. found that reliability, technical design support exemplary knowledge protection technology were three most cited items. Bourns committed meeting each three following requirements.
Knowledge Protection Technology Bourns
boasts industry's widest range telecom overvoltage overcurrent protectors. active involvement international protection standards organizations ensures world-class technology applications expertise. Bourns continues develop innovative range integrated circuit protection products using knowledge expertise combine multiple technologies into optimized single devices designed save both cost board space. Whether need single product complete protection solution, Bourns telecom circuit protection team there help you. look forward working with you.
Reliability Reliability requires understanding
capabilities specifications circuit protection technology. Bourns global reputation quality products circuit protection devices have consistently demonstrated reliability field applications. Bourns committed complete support circuit protection solution life program.
Bourns Website Bourns website,
www.bourns.com, invaluable resource further help determine your circuit protection solution. following information available: Comprehensive data sheets product selection tool Reference Design Notes Tutorials area circuit protection More detailed information regulatory requirements
Technical Design Support Bourns global
team specialized sales Field Applications Engineers (FAEs) ready bring in-depth circuit protection expertise your next project. Wherever located world have regional applications team available help from Asia Europe Americas. your next application contact your local sales office which will contact with your nearest help make right choice circuit protection solutions your application.
Protection Needed
Communication systems vulnerable damage from lightning other electrical surges. systems become more complex, they also become more vulnerable. Balancing cost, standards compliance field reliability protection such systems both commercial technical challenge, compounded additional performance constraints modern digital networks such xDSL. "surge" temporary increase voltage, current both. Lightning power distribution system cause surges, very different magnitudes durations (see Table These events either direct contact field resistive coupling from events close telephone system, resulting wide variety threats. example, effects power line fault caused lightning even more threatening telephone system than original lightning. dangers large voltages currents obvious, time also important. Lightning fast bulk heating critical, whereas longer term currents power faults, bulk heating significantly effect device survival safety. Direct contact (power cross) causes high currents, while lower currents result from power induction. Obviously, single device protection solution seldom possible.
Field reliability
Quality service Standards compliance Signal integrity
Figure Protecting Quality Service" requires more than standards compliance Protection performs several functions outlined Figure First must prevent minimize damage caused surge; then must ensure that system returns working condition with minimal disruption service. vital that under normal conditions protection does interfere with signal, creating special challenges xDSL other digital technologies. protection must also fail safe manner during overstress.
Development Standards enormous
cost interrupted service failed network equipment, telephony service providers around world have adopted various specifications help regulate reliability performance telecommunications products that they purchase. Europe much East, most common standards ITU-T K.20, K.21 K.45. North America, most operating companies base their requirements GR-1089-CORE, TIA-968-A (formerly known Part 68), 60950. Telecommunication Standards Recommendations Summary discusses these various standards more depth. Figure next page summarizes applicable standards.
Amplitude Lightning Power Cross Power Induction
Duration mins mins
Bulk Heating Negligible Significant Crucial
Table Different surge sources result very different effects
Intra-Building Wiring Splitter
TwistedPair POTS Fiber
Customer Premise (Subscriber)
Circuit Protection Powered Safety
Access
Central Office (Telecom Center)
Customer Premise 60950-1 (2003)
Outside Plant
Access
Customer Premise (Subscriber)
Central Office 60950-21 (2003)
Region
Primary Protection
GR-974-CORE 2002) GR-1361-CORE (1998) TIA-968-A (2002-2003-2004 Part GR-1089-CORE (2002) 60950-1 (2001)
Equipment Secondary Protection Powered Safety
GR-1089-CORE (2002)
GR-1089-CORE (2002)
60950-21 (2002)
ITU-T K.50 (2000) ITU-T K.12 (2000) ITU-T K.28 (1993)
ITU-T K.51 (2000)
Int'l
Primary Protection
Equipment Secondary Protection
ITU-T K.21/44 (2003)
ITU-T K.45/44 (2003)
ITU-T K.20/44 (2003)
Figure
Bourns® Circuit Protection Products
Overvoltage Products
Bourns family Discharge Tubes (GDTs) creates quasi short circuit across line when ionized quasi overvoltage, returning their high impedance state after surge terminated. These robust devices have highest impulse current capability technology combined with negligible capacitance, making them very attractive protection high speed digital lines well standard POTS lines. Bourns family TISP® Thyristor-based devices initially clamp line voltage, then switch lowvoltage "On" state. After surge, when current drops below "holding current," protector returns original high impedance state. Bourns offers family Transient Voltage Suppressor (TVS) Diodes which operate rapidly moving from high impedance non-linear resistance characteristic that clamps surge voltages. diodes provide fast-acting well-controlled clamping voltage, however they exhibit high capacitance energy capability thereby restricting maximum surge current. TISP® Telecom Overvoltage Protectors
MSP® TRIGARD® Discharge Tubes
Overcurrent Products
Bourns family Multifuse® Polymer Positive Temperature Coefficient (PPTC) Thermistor "resettable fuses" used wide variety circuit protection applications. Under high current fault conditions device resistance will increase many orders magnitude remain "tripped" state, providing continuous circuit protection until fault removed. Once fault removed power cycled, device will return normal resistance state. Bourns family TelefuseTelecom Fuses constructed from metal element encapsulated ceramic housing. fuse element heats rate I2R. Once temperature element exceeds melting point, vaporizes opens circuit. resistance fuses attractive xDSL applications.
Diodes energy surge protection
Multifuse® Resettable Fuses
TelefuseTelecom Fuses
Bourns family Line Protection Modules (LPMs) based most fundamental form current protection Line Feed Resistor (LFR), normally fabricated thick-film resistor ceramic substrate. LPMs have ability withstand high voltage impulses without breaking down, current interruption occurs when high temperature developed resistor causes mechanical expansion stresses that result ceramic breaking open. current power induction break open, creating long-term surface temperatures more than avoid heat damage adjacent components, maximum surface temperature limited about incorporating series thermal fuse link LFR. This capability extended design manufacture full range modules, incorporating both overcurrent overvoltage devices ceramic substrate. Further incorporation silicon discrete components also possible achieve small modules with high performance full functionality.
Line Protection Modules
PROTECTION PRODUCTS
Bourns family ChipGuard® clamp protectors consists multilayer varistors (MLV) designed protect equipment against electrostatic discharge (ESD) conditions. Bourns® ChipGuard® series leakage currents that make devices transparent under normal operation. transients cause device clamp voltage reducing effective resistance device will reset high impedance state after disturbance passed. Bourns® ChipGuard® product family designed protect equipment such communication ports IEC61000-4-2, level Bourns offers family Diode Arrays protection. Using Thin Film Silicon wafer fabrication technology combined with Chip Scale Packaging, such devices commonly used portable electronics applications where customer specified particular electrical response characteristic minimum real estate allowance. Handheld wireless devices, particular, cell phones PDAs often have data and/or audio ports that Diode Arrays protection (CSP options)
ChipGuard® Multilayer Varistors protection
connect device other external devices such laptop computers headsets. Bourns offers capability integrate resistors, capacitors, inductors, diodes transistors into single monolithic device with minimal packaging overhead.
Outside Plant
Bourns Outside Plant product line offers full line protection products based Discharge Tube (GDT) patented Multi-Stage Protection (MSP®) technology. Products include 5-Pin protectors central office, building entrances wide range station protectors customer premises. also offer complete line fully modular Network Interface Devices (NIDs) available from hundred lines. NIDs flexible with wide variety customizations available. Additionally, round offering with full line ADSL VDSL splitters available both binding post snap-in packages. products listed manufactured Telcordia technical requirements. Bourns® Data Signal Systems Surge Protectors offer surge protection field mounted 4-20 transmitters. They feature 1669 series protector with sealed stainless steel pipe easy connection field transmitter inch port typically rail-mounted 1820 series protector protect equipment opposite loop.
Outside Plant Boxes Data Line Protectors
Station Protectors Central office customer premises protectors
Other Products
Bourns offers family Transformers suitable Telecom, LAN, Ethernet xDSL applications. They exhibit high isolation ideal signal conditioning, impedance matching noise filtering applications. Devices available leading chipsets. comparison technologies used telecom applications described section entitled, "Which Protection Technology Right Equipment," including technologies offered Bourns, describing general advantages disadvantages each also giving suggestions appropriate applications.
Custom Telecom Transformers
Selecting Appropriate Device your Application
following Network Diagram gives overview where various technologies used today's communication electronics industry.
Circuit Protection Solutions
Several generic examples protection components given over following pages your reference. field application engineers available discuss your actual circuit configuration requirements.
Central Office (CO)
Multifuse® Resettable Fuse
TISP® Thyristor Surge Protection
SLIC PROTECTOR
SLIC
VBAT1
TISP6NTP2A
SLIC
4A12P-516-500 MF-RX012/250
VBAT2
Integrated Line Protection Multiple SLICs
TISP® Thyristor Surge Protection
RING/TEST PROTECTION TEST RELAY RING RELAY SLIC RELAY
Multifuse® Resettable Fuse
TISP® Thyristor Surge Protection
SLIC PROTECTOR SLIC
RING 2026-xx 2036-xx 4B06B-524-400 4B06B-522-500 MF-RX012/250 TISP 3xxxF3 7xxxF3
TISP 61089B VBATH
Line Card Protection with Electromechanical Relays
TEST EQUIPMENT
RING GENERATOR
Central Office (CO) continued
Multifuse® Resettable Fuse
RING RELAY
SLIC RELAY
SLIC
RING
LCAS
CONTROL LOGIC
2026-xx 2036-xx
4B06B-540-125/219 MF-RX012/250
Vbat
VRING VBAT SW5a
SW5b
RING GENERATOR
Line Card Protection with Solid-State Line Card Access Switch
Customer Premises (CPE)
MultifuseMF-RX018/250
TelefuseB1250T
TIA/EIA-IS-968 60950 ITU-T K.21 (Basic)
TISPTISP4360MM TISP4360H3
2027-xx 2035/37-xx
RING
Basic ADSL Interface
MultifuseMF-RX018/250
TelefuseB1250T
Relay Isolation arrier arity Bridge RING
Switch
TIA/EIA-IS-968 60950 ITU-T K.21 (Basic)
Signal
TISP4350H3 TISP4290L3
Ring Detector
TISP
Basic Electronic Hook Switch Protection
MultifuseMF-RX018/250
TelefuseB1250T
Ring Detector RING
arity Bridge Relay Hook Switc
TISPTISP4350H3 TISP4290L3
2027-xx 2035/37-xx
TIA/EIA-IS-968 60950 ITU-T K.21 (Basic)
Isolation arrier
Basic Electromechanical Hook Switch Protection
Voice Protection
Ringing SLIC Dual Voltage Ringing SLIC SLIC
B1250T Telecom Fuse B1250T Telecom Fuse
SPLITTER
TelefuseFuses
RING
TISPTISP61089B
TISP4290H3BJR
SPLITTER
B1250T Telecom Fuse
TelefuseFuses
RING
B1250T Telecom Fuse
TISPTISP8201MD
TISP8200MD
TISP4290H3BJ
(Line Card Access Switch) (Data Subscriber Line)
thy1
B1250T Telecom Fuse
SPLITTER
TelefuseFuses
RING
LCAS
thy2
B1250T Telecom Fuse
ADSL Splitter with Primary
ADSL
TISPTISP4360H3 RING Analog
T1/E1 Application
TelefuseBase Station Receiver B1250
Telefuse
B1250T
TISP
TISP4015H1BJ
TISPTISP4015H1BJR
TISPTISP4015H1BJR
Protection
MultifuseMF-MSMF110 Power Data
Port
Data
Controller
ChipGuardCG0603MLC-05E
Firewire Port
Power
MultifuseMF-SM150/33
Data-a
Controller
Data-a
Data-b
Data-b
ChipGuardCG0603MLA-18KE
Communication Port Protection
10/100 Base Ethernet Protection
Driver Receiver
CG0603MLC-
ChipGuardCG0603MLC-
RJ45 socket
CG0603MLC-05E
ChipGuardCG0603MLC-05E
Technology Applications
(OTG)
After success standard, Implementers Forum, Inc. developed expansion standard called Go). developed based concept allowing peripheral devices communicate directly with each other without going through host. traditionally consisted host/periphery topology where host peripheral could communicate only through host device. However, introduced supplement allow existing mobile devices communicate point-to-point manner without traditional host (PC). Under peripheral device that designed limited host (A-Device) must able transmit receive power. such equipment, current rating port A-device greater than then voltage regulation required between 4.75 5.25 A-device required meet specification requirements power providers. makes overcurrent protection requirement polymer resettable fuse, such Bourns® Multifuse® polymer resettable fuse, solution providing such overcurrent protection. Bourns® Multifuse® MF-MSMF Series MF-NSMF Series have been introduced specifically overcurrent protection ports.
Power over Ethernet (PoE)
IEEE 803.3af Ethernet specification standard defines voltage current requirements powered Ethernet equipment delivering volts power PoE-compliant devices over eight-wire Category cabling. There types architecture. called mid-span, which involves running power over unused wire pairs cable. Mid-span products built into patch panel-like devices that existing infrastructures. other, increasingly popular version 802.3af called end-span. End-span runs power signals over same wire pairs used data transmission. Industry experts end-span devices becoming popular because they usually built into switches with PoE, which users often telephony WLAN rollouts. Typically, designers chose back power management circuit with solid state polymer resettable fuse. resettable fuse deactivates port protected power management circuit temporary permanent fault thereby prevents further system failures. Bourns® device compact, symmetrical 2018 footprint design with very profile. design facilitates incorporation onto already densely populated boards today's network equipment.
Product Selection Tables
important read Technology Comparison section this guide prior deciding what device right application. strongly advise that contact your local Bourns Field Applications Engineer discuss your exact application choice device(s). advantages disadvantages each technology discussed which will further help correct choice components and/or modules.
Telecom Line Protection
Central Office Access Equipment
U.S.A. Central Office Access GR-1089-CORE
Application/ Function Protected Element Overvoltage Protection TISP4xxxH3BJ TISP4xxxJ1BJ TISP4xxxH3BJ 2035-35-SM TISP3xxxH3SL TISP7xxxH3SL Analog Line Card Mechanical Relay TISP4xxxH3BJ TISP4xxxJ3BJ TISP4xxxH3BJ 2035-35-SM TISP1xxxF3D TISP5xxxH3BJ Analog Line Card TISP61089AD SLIC TISP61089BD TISP820xMD TISP83121DR TISP4xxxH3BJ xDSL Transformer/C Line Card 2036-40-SM 2036-40-SM TISP4A270BJ TISP4125H3BJ Analog Line Card Solid State Relay (LCAS) TISP4219H3BJ TISP4125H3BJ TISP4A265H3BJ TISP4125H3BJ B1250T 4B06B-540125/219 MFR016/600 B1250T B1250T TISPL758F3 2036-40-SM 2035-35-SM MF-R016/600 TISP4xxxM3AJ B1250T TISP4xxxM3BJ MF-R018/250 TISP4xxxM3AJ TISP4xxxM3BJ MF-R018/250 MF-R016/600 4A12P-516-500 4B07-530-400 TISP820x 4B04B-524-500 TISP83121 4B06B-514-500 TISP6NTP2x TISP4xxxL3AJ TISP4xxxL3AJ TISP6NTP2x 4B06B-514-500 TISP83121 4B04B-524-500 4B04B-524-500 B1250T 4B04B-524-500 TISP1xxxF3 MF-R012/250 TISP61089 MF-SM013/250 TISP61089 4B07B-530-400 TISP820x 4B07B-530-400 TISP61089 MF-SM013/250 TISP1xxxF3 MF-R012/250 B1250T 4B06B-524-500 4A12P-516-500 MF-R016/600 TISP3xxxF3 TISP7xxxF3 MF-R012/250 MF-SM013/250 TISP3xxxF3 TISP7xxxF3 MF-R012/250 MF-SM013/250 B1250T Overcurrent Protection
International Central Office ITU-T K.20 K.44
Overvoltage Protection TISP4xxxL/M3 TISP4xxxH3 TISP4xxxL/M3 Overcurrent Protection
Access ITU-T K.44 K.45
Overvoltage Protection TISP4xxxL/M3 TISP4xxxH3 TISP4xxxL/M3 Overcurrent Protection
xDSL Line Card
DSLAM Capacitor
MF-RX018/250 B1250T
MF-RX018/250 B1250T
MF-R012/250 MF-SM013/250 Various LPMs TISPL758F3
MF-R012/250 MF-SM013/250 Various LPMs
Note: Central Office Primary Protection comes various forms 5-Pin protection modules, complying with 497, 974, 1361 RUS-PE
Customer Premises Equipment
U.S.A. TIA-968-A 60950 Application/ Function
DECT Phone
International ITU-T K.21 K.44 60950 Overvoltage Protection Overcurrent Protection
MF-SM013/250 4B04B-503-500 TISP4290F3LMx 4B06B-514-500 MF-VS210*
Protected Element
Hook Switch Electronic Relay Rechargeable Battery
Overvoltage Protection
TISP4350H3LM TISP4350H3BJ CD214B-TxxxC TISP4350T3BJ
Overcurrent Protection
MF-R016/600 B1250T MF-VS210* B1250T
Phone
Hook Switch/ Electronic Relay
CD214B-Txxx MF-R015/600 2035-35-SM TISP4350MMBJ TISP4350MMAJ CD214B-Txxx 2035-35-SM TISP4600/4700
Feature Phone
Hook Switch/ Electronic Relay
MF-R015/600-A MF-R015/600
Phone
Insulation
CD214Cxxx 2035-60-SM
B1250T
TISP4600/4700
MF-SM013/250
Surge Phone Port
Insulation Hook Switch/ Mechanical Relay
2035-60-SM 2035-35-SM MF-R015/600 CD214B-Txxx TISP4350T3BJ MF-R016/600 MF-R015/600-A B1250T MF-R015/600 B1250T MF-R015/600 MF-MSMF110 B1250T TISP4395L3 2035-35-SM 2035-40 TISP4290L3AJ
MF-R012/250
Analog Modem
Hook Switch/ Mechanical Relay
2035-35-SM CD214B-TxxxC
MF-R012/250
Digital Modem
Transformer/C Hook Switch/ Electronic Relay Port*
2035-35-SM TISP4350T3BJ 2035-35-SM CD214B-Txxx TISP4395H3
MF-R015/600
Modem
MF-MSMF110
Modem
Transformer/C
CD214C-TxxxC MF-R015/600 2035-35-SM TISP5xxxH3BJ 2035-40
MF-RX018/250
Modem
SLIC CD214C-Txxx Transformer 2035-35-SM
B1250T TISP1072F3 MF-R015/600 4B06B-514-500 TISP6NTP2xD
SLIC CD214C-Txxx
MF-R015/600
TISP6NTP2x
MF-R012/250 MF-SM013/250
Cable Telephony Data Port
Transformer Power Passing Tap*
TISP4350T3BJ CD214C-Txxx
MF-R015/600 TISP4290L3AJ MF-R055/90*
MF-RX018/250 MF-R055/90*
*Different Regulatory Standards apply
Customer Premises Equipment continued
U.S.A. TIA-968-A 60950 Application/ Function Protected Element
Hook Switch Mechanical Relay Electric Motor* Routers Linked Surge Phone Port TISP61089BD PABX Pairgain SLIC CD214A-Txxx SLIC SLIC Transformer/C Home Power over Ethernet port* TISP1072F3DR TISP820xMD TISP4350H3LM CD214A-TxxxC MF-R015/600 MF-R016/600 MF-R015/600 B1250T TISP4290F3LMx MF-SMDF050* MF-SMDF050* TISP820x MF-R015/600
International ITU-T K.21 K.44 60950 Overvoltage Protection Overcurrent Protection
Overvoltage Protection
2035-35-SM
Overcurrent Protection
MF-R015/600 B1250T
Equipment
2027-xx
MF-SM100*
TISP4350H3BJ MF-SM100* 2035-60-SM
Insulation CD214B-Txxx 2035-60-SM Insulation CD214C-TxxxC MF-R015/600 B1250T TISP61089 4B06B-514-500 MF-R014/250
*Different Regulatory Standards apply Note: Primary Protection Customer Premises Equipment provided line 5-Pin Building Entrance Modules conventional Station Protectors, Bourns® MSP®, Coax C-TV Protectors, complying 497, 497C, 974, 1361 RUS-PE Various Network Interface Devices (NIDs) available these Customer Premises protectors.
Protection Selection
(Thyristor Surge Protector) START Protection Request?
(IEC61000-4-2)
Array Required? Surge Required?
(8/20
Diode Arrays
(page
Series Tolerance Capacitance Requirement? Capacitance Requirement? Series
plus voltages 8/20 specified typical
Capacitance Requirement? Series
plus voltages data sheet characterized max. option Ultra-low leakage current
8/20 specified max. operation Leakage current characterized
Series
voltages data sheet characterized max.
Other Devices
Outside Plant Protectors, Signaling System Surge Protectors, Line Protection Modules, Diodes Telecom Transformers, please refer Product Selection Guides next section and/or contact your local representative more information.
Discharge Tubes
Selection Guide
Bourns® Discharge Tubes (GDTs) prevent damage from overvoltages acting "crowbar", i.e. short circuit. When voltage surge exceeds GDT's defined sparkover voltage level (surge breakdown voltage), becomes ionized conduction takes place within fraction microsecond. When surge passes system voltage returns normal levels, returns high-impedance (off) state. Very high surge handling capability Extremely work function long service life capacitance insertion loss Highly symmetrical cross-ionization Non-radioactive materials Optional Switch-Grade Fail-Short Device "Crowbar" function less than voltage Telcordia, RUS, ITU-T, IEC, IEEE compliant Broadband network capable Through-hole, cassette mounting configurations available Surge Protector Test (Model 4010-01) available GDTs other technologies
Features
Unmatched performance reliability Various lead configurations Smallest size industry (Mini 2-Pole MINI TRIGARDTM)
3-Terminal GDTs (Switch-Grade Fail-Short Device option available)
Sparkover Voltage
Model
2026-07 2026-09 2026-15 2026-20 2026-23 2026-25 2026-30 2026-35 2026-40 2026-42 2026-47 2026-60
Max. Single Surge Rating (8/20
Surge Rating (8/20
Rating
Capacitance
Min. Surge Life Rating (10/1000 waveshape)
rms,
1000
2036-07 2036-09 2036-15 2036-20 2036-23 2036-25 2036-30 2036-35 2036-40 2036-42 2036-47 2036-60
rms,
10/700
rated discharge current 3-Electrode GDTs total current equally divided between each line ground.
3-Terminal GDTs (Switch-Grade Fail-Short Device option available) continued
Sparkover Voltage Max. Single Surge Rating (8/20 Surge Rating (8/20 Min. Surge Life Rating (10/1000 waveshape)
Model
Rating
Capacitance
2026-23-xx-MSP
rms, 1000 1000
2026-33-xx-MSP
MSP® Multi-Stage Protection. MSP® devices have patented Switch-Grade Fail-Short Device standard configuration contains miniature MOVs parallel with each line. rated discharge current 3-Electrode GDTs total current equally divided between each line ground.
2-Terminal GDTs
Sparkover Voltage
rms, 10/700
Model
2027-09 2027-15 2027-20 2027-23 2027-25 2027-30 2027-35 2027-40 2027-42 2027-47 2027-60 2037-09 2037-15 2037-20 2037-23 2037-25 2037-30 2037-35 2037-40 2037-42 2037-47 2037-60 2035-09 2035-15 2035-20 2035-23 2035-25 2035-30 2035-35 2035-40 2035-42 2035-47 2035-60
Max. Single Surge Rating (8/20
Surge Rating (8/20
Rating
Capacitance
Min. Surge Life Rating (10/1000 waveshape)
rms,
rms, 10/700
Product Dimensions
2026-XX-A
(.063) (.354) (.024) 11.7 (.460) (.307)
2026-XX-C8
2026-XX-C (0.040 dia. lead wire 2026-XX-CB (0.032 dia. lead wire
(.29)
(1.2) LONG PLCS.
DIA. (.04)
DIA. (.04) (.29)
2026-XX-A1
(.311) 11.2 REF. (.440)
2026-XX-C13
(0.3)
Fail-Short Configuration 2026-XX-C2F Shown
(.32)
DIA. (.04)
DIA. (.04)
(.028 .040)
(0.22)
MIN. (0.18) (0.22)
(.38)
2026-XX-C2
13.0 MAX. (.512)
2026-XX-C14
(.295) (.04) DIA. REF. (.26)
DIMENSIONS
MILLIMETERS (INCHES)
15.5 REF. (.610) DIA. (.04) (.173) (.173) MIN. (.177)
(.26)
2026-XX-C3
2026-XX-C18
17.8 (.70) 3.04 (.120)
(.295)
DIA. (.04) 4.75 (.187) 4.75 (.187) MIN. (.177)
DIA. (.04) (.25) 3.93 (.155) (.25)
Specifications subject change without notice. Customers should verify actual device performance their specific applications.
Product Dimensions
2036-XX-A
DIA. (.202) (.290 .303) DIA.
2036-XX-B (0.032 dia. lead wire 2036-XX-C (0.040 dia. lead wire*
25.0 LONG MIN. (0.99)
2026-XX-C2M1XX
(.028 .040)
(.17)
25.0 LONG MIN. (0.99) (.157)
2036-XX-B2 (0.032 dia. lead wire 2036-XX-C2 (0.040 dia. lead wire*
(.032)
15.5 (.61) (.29)
(.157)
Optional Configuration
(.157)
2026-23-C2M136 2026-25-C2M136 2026-33-C2M143
2036-XX-B8 (0.032 dia. lead wire 2036-XX-C8 (0.040 dia. lead wire*
(.173) (.173)
2026-XX-C16M1XX
14.2 (.558)
2036-XX-B3 (0.032 dia. lead wire 2036-XX-C3 (0.040 dia. lead wire*
(.157)
(.157)
(.032)
(0.29)
(0.15)
(0.15)
(.150)
(.150)
Fail-Short Configuration 2036-XX-B2F Shown
(.208)
2036-XX-B9 (0.032 dia. lead wire 2036-XX-C9 (0.040 dia. lead wire*
(.352)
(.244)
2026-23-C16M136 2026-25-C16M136 2026-33-C16M143
(.157) 19.0 (.748)
2026-XX-C4M1XX
Center Electrode Lead: C-Configuration
(.040)
(.374)
1.02 DIA. (.040) 6.35 (.250) 6.35 (.250)
*Center Electrode Lead: Center Lead C-Configuration detail.
(.157)
15.5 (.61)
DIMENSIONS MILLIMETERS (INCHES) 2026-23-C4M136 2026-25-C4M136 2026-33-C4M143
7.49 (.295)
Specifications subject change without notice. Customers should verify actual device performance their specific applications.
Product Dimensions
2027-XX-A
(.236)
2035-XX-A
DIA. (.197) (.161)
DIA. (.314)
2027-XX-BT1 (0.032 dia. lead wire
52.4 (2.1)
2035-XX-B (0.032 dia. lead wire 2035-XX-C (0.040 dia. lead wire
MIN. (0.78) LONG PLCS.
10.0 (0.4)
2035-XX-B5 (0.032 dia. lead wire 2035-XX-C5 (0.040 dia. lead wire 2027-XX-B (0.032 dia. lead wire 2027-XX-C (0.040 dia. lead wire
65.0 (2.5)
30.0 LONG (1.2) PLCS.
16.7 REF. (.658) 14.2 (.560)
MIN.
2027-XX-B10 (0.032 dia. lead wire 2027-XX-C10 (0.040 dia. lead wire
(.075) PLCS. 12.7 (.500)
(.30)
(.15)
DIMENSIONS
MILLIMETERS (INCHES)
(.030) PLCS.
(.060) (.078)
(.318)
Specifications subject change without notice. Customers should verify actual device performance their specific applications.
Product Dimensions
2037-XX-A
DIA. (.197) (.197)
2037-XX-B5 (0.032 dia. lead wire 2037-XX-C5 (0.040 dia. lead wire
16.7 REF. (.658) 14.2 (.560)
MIN.
2037-XX-B (0.032 dia. lead wire 2037-XX-C (0.040 dia. lead wire
MIN. (0.78) LONG PLCS.
(.15)
(.30)
2035-XX-SM
(.173)
Recommended Layout
(.155)
(.195) DIA. (.190)
(.220)
(.050)
2036-XX-SM
(.283) (.035) DIA. (.195)
Recommended Layout
(.063)
(.195) DIA. (.190) (.020) (.028) DIA. (.244)
(.220)
(.130) (.323)
DIMENSIONS
MILLIMETERS (INCHES)
Specifications subject change without notice. Customers should verify actual device performance their specific applications.
Bourns® TISP® Thyristor Surge Protectors
Selection Guide
Bourns® TISP® thyristor surge protector products prevent damage from overvoltages, these silicon based devices initially clamp line voltage limit overvoltages telephone lines, then switch voltage "On" state. After surge, when current drops below "holding current," protector returns original high impedance state.
Features
Extensive range offering multiple voltage variants Surface mount through-hole packages Designed withstand international lightning.
Fixed Voltage
Series Device Symbol
Gated (Programmable) Voltage
Applications Series
TISP6xxx TISPPBLx SLIC Line Card Dual Programmable
Device Symbol
Applications
TISP1xxx Dual Unidirectional
G1,G2
SLIC Line Card Ericsson PBL3xx SLIC
TISP3xxx TISPL758L Dual Bidirectional
Wire Ground Backed Ringer Solid State Relay Surge Bars
G1,G2
TISP6NTP2x Quad Programmable
G3,G4
TISP4xxx Single Bidirectional
Modems Telephones Machines xDSL Boxes Surge Bars
Dual SLIC Lines Cable Modems ISDN Power Feeds Smart Boxes
TISP83121 Dual Gate Unidirectional
Positive Negative Polarity Ringing SLICs
TISP5xxx Single Unidirectional
SLIC Line Card ISDN
TISP8200 Dual Programmable Unidirectional Negative Polarity
Analog Line Card Dual Supply Ringing SLIC TISP8200 TISP8201 typically used complementary pair
TISP70xx Triple Unidirectional
xDSL ISDN T1/E1/E3
TISP8201 Dual Programmable Unidirectional Positive Polarity TISP9xxx Integrated Complementary Buffered-Gate Protector Dual Polarity Protection
Telecom System Primary Overvoltage Protection
Series Applications
Solid state replacement Discharge Tubes
Line
Ground
Access Equipment Line Cards Protection Dual Polarity Ringing SLICs
2ELx 7ELx
Line
Single Bidirectional
TISP1xxxF3 Series Dual Unidirectional Overvoltage Protectors -150
General fixed voltage SLIC protection Line Cards VOIP
Standoff Voltage VDRM ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
TISP1082F3
Device
Delivery Options
TISP1072F3
TISP1xxxH3 Series Dual Unidirectional Overvoltage Protectors -150
SLIC protection Line Cards VOIP
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
-120
TISP1070H3 TISP1080H3 TISP1095H3
TISP1120H3
TISP3xxx Series Dual Bidirectional Overvoltage Protectors
Legerity Intersil Line Card Access Switch (LCAS) protection, L7581/2/3 protection TISPL758L3 General 3-point protection TISP3xxxF3 Line Card modem protection where ground available TISP3xxxT3
Standoff Voltage VDRM
105,
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
130,
TISPL758LF3 TISP3072F3 TISP3082F3 TISP3125F3
TISP3150F3 TISP3180F3 TISP3240F3 TISP3260F3 TISP3290F3 TISP3320F3 TISP3380F3 TISP3600F3 TISP3700F3 TISP3070T3 TISP3080T3 TISP3095T3 TISP3115T3 TISP3125T3 TISP3145T3 TISP3165T3 TISP3180T3 TISP3200T3 TISP3219T3 TISP3250T3 TISP3290T3 TISP3350T3 TISP3395T3 TISP3070H3 TISP3080H3 TISP3095H3 TISP3115H3 TISP3125H3 TISP3135H3 TISP3145H3 TISP3180H3 TISP3210H3 TISP3250H3 TISP3290H3 TISP3350H3
TISP4xxxF3 Series Single Bidirectional Overvoltage Protectors
General purpose 2-point protection
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
TISP4072F3 LMR, LMFR TISP4082F3 LMR, LMFR TISP4125F3 LMR, LMFR TISP4150F3 LMR, LMFR TISP4180F3 LMR, LMFR TISP4240F3 LMR, LMFR TISP4260F3 LMR, LMFR TISP4290F3 LMR, LMFR TISP4320F3 LMR, LMFR TISP4380F3 LMR, LMFR TISP4600F3 LMR, LMFR TISP4700F3 LMR, LMFR
TISP4xxxL1 Series Single Bidirectional Overvoltage Protectors
Dataline protection such E1/T1 xDSL with ITU-T compliance Ideal with MF-RX018/250 Multifuse® PPTC device
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
TISP4015L1 TISP4030L1
AJR, AJR, AJR,
TISP4040L1
TISP4xxxL3 Series Single Bidirectional Overvoltage Protectors
General 2-point protection European applications Ideal with MF-SM013/250 Multifuse® PPTC device
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
TISP4070L3 TISP4080L3 TISP4090L3 TISP4125L3 TISP4145L3 TISP4165L3 TISP4180L3 TISP4220L3 TISP4240L3 TISP4260L3 TISP4290L3 TISP4320L3 TISP4350L3 TISP4360L3 TISP4395L3
TISP4xxxL3 Series Single Bidirectional Overvoltage Protectors
General 2-point protection European applications Ideal with MF-SM013/250 Multifuse® PPTC device
Standoff Voltage VDRM Protection Voltage V(BO) ITSP Ratings Lightning Surge Standards TIA-968-A 10/160 TIA-968-A 5/310 TIA-968-A 10/560
Device
Delivery Options
TISP4070L3
TISP4350L3
TISP4xxxMM Series Single Bidirectional Overvoltage Protectors
General 2-point protection European applications Ideal with MF-SM013/250 Multifuse® PPTC device
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
TISP4300MM TISP4350MM
AJR, AJR, AJR,
TISP4360MM
TISP4xxxM3 Series Single Bidirectional Overvoltage Protectors
General 2-point protection Ideal with MF-SM013/250 Multifuse® PPTC device
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
TISP4070M3 AJR, BJR, LMR, LMFR TISP4080M3 AJR, BJR, LMR, LMFR TISP4095M3 AJR, BJR, LMR, LMFR TISP4115M3 AJR, BJR, LMR, LMFR TISP4125M3 AJR, BJR, LMR, LMFR TISP4145M3 AJR, BJR, LMR, LMFR TISP4165M3 AJR, BJR, LMR, LMFR TISP4180M3 AJR, BJR, LMR, LMFR TISP4200M3 TISP4219M3 AJR,
TISP4220M3 AJR, BJR, LMR, LMFR TISP4240M3 AJR, BJR, LMR, LMFR TISP4250M3 AJR, BJR, LMR, LMFR TISP4260M3 LMR, LMFR TISP4265M3 AJR, BJR, LMR, LMFR TISP4290M3 AJR, BJR, LMR, LMFR TISP4300M3 AJR, BJR, LMR, LMFR TISP4350M3 AJR, BJR, LMR, LMFR TISP4360M3 AJR, BJR, LMR, LMFR TISP4395M3 AJR, BJR, LMR, LMFR TISP4400M3 BJR, LMR, LMFR
TISP4xxxT3 Series Single Bidirectional Overvoltage Protectors Modem Protection
TIA-968-A protection Ideal with TelefuseB1250 Multifuse® MF-R015/600 PPTC device
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
TISP4290T3 TISP4350T3
TISP4400T3
TISP4xxxH1 Series Single Bidirectional Overvoltage Protectors
Dataline protection such E1/T1 xDSL with GR-1089-CORE compliance
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
TISP4015H1 TISP4030H1
TISP4040H1
TISP4xxxH3 Series Single Bidirectional Overvoltage Protectors
General telecom protection, either enhanced ITU-T Telecordia GR-1089-CORE designs Ideal with TelefuseB1250T Multifuse® MF-R015/600 PPTC device
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
TISP4070H3 TISP4080H3 TISP4095H3 TISP4115H3 TISP4125H3 TISP4145H3 TISP4165H3 TISP4180H3 TISP4200H3 TISP4219H3 TISP4220H3 TISP4240H3 TISP4250H3 TISP4260H3 TISP4265H3 TISP4290H3 TISP4300H3 TISP4350H3 TISP4360H3 TISP4395H3 TISP4400H3 TISP4500H3
BJR, LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR BJR, LMR, LMFR
TISP4CxxxH3 Series Capacitance Single Bidirectional Overvoltage Protectors
General capacitance telecom protection xDSL data applications
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
TISP4C290H3 TISP4C350H3
TISP4C395H3
TISP4xxxH4 Series Single Bidirectional Overvoltage Protectors
Full temperature general overvoltage protection, where holding current must exceed
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
TISP4165H4 TISP4180H4 TISP4200H4 TISP4265H4 TISP4300H4 TISP4350H4
TISP4xxxJ1 Series Single Bidirectional Overvoltage Protectors
General high current line data protection bottom element protection solution
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
1000
TISP4070J1 TISP4080J1 TISP4095J1 TISP4115J1 TISP4125J1 TISP4145J1 TISP4165J1 TISP4180J1 TISP4200J1 TISP4219J1 TISP4250J1 TISP4290J1 TISP4350J1 TISP4395J1
TISP4xxxJ3 Series Single Bidirectional Overvoltage Protectors
High current POTS protection powered xDSL protection
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
1000
TISP4290J3 TISP4350J3
TISP4395J3
TISP5xxxH3 Series Single Unidirectional Overvoltage Protectors -150
General fixed voltage SLIC protection ideal VOIP applications
Standoff Voltage VDRM
-120 -160
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
-110 -115 -150 -190
TISP5070H3 TISP5070H3 TISP5110H3 TISP5115H3 TISP5150H3 TISP5190H3
TISP7xxxL1 Series Triple Bidirectional Overvoltage Protectors
Balanced 3-point protection ISDN xDSL data communications applications
Standoff Voltage VDRM Protection Voltage V(BO) ITSP Ratings Lightning Surge Standards TIA-968-A 10/160 TIA-968-A 5/310 TIA-968-A 10/560
Device
Delivery Options
TISP7015L1
TISP7038L1
TISP7xxx Series Triple Bidirectional Overvoltage Protectors
General balanced 3-point protection TISP70xxF3 General balanced 3-point protection typically European ITU-T applications TISP7xxxF3 General balanced 3-point protection typically Telecordia GR-1089-CORE applications TISP7xxxH3
Standoff Voltage VDRM
Device
Delivery Options
ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
TISP7072F3 TISP7082F3 TISP7125F3 TISP7150F3
TISP7180F3 TISP7240F3 TISP7260F3 TISP7290F3 TISP7320F3 TISP7350F3 TISP7380F3 TISP7070H3 TISP7080H3 TISP7095H3 TISP7125H3 TISP7135H3 TISP7145H3 TISP7165H3 TISP7180H3 TISP7200H3 TISP7210H3 TISP7220H3 TISP7250H3 TISP7290H3 TISP7350H3 TISP7400H3
TISP6xxx Series Programmable Overvoltage Protectors SLIC Protection
Ringing SLIC protection VOIP applications Alternative Legerity (Previously Lucent) L7591 protector TISPL7591 Infineon (previously Ericsson) PBL386 SLIC protection TISPPBL1, BL2,
Standoff Voltage VDRM ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
Device
Delivery Options
TISP61089H TISP61060 TISP61089 TISP61089A TISP61089B TISP61511 TISP61512 TISP61521 TISPL7591 TISPPBL1 TISPPBL2 TISPPBL3
Programmable -170 Programmable Programmable Programmable -120 Programmable -170 Programmable Programmable Programmable -170 Programmable Programmable Programmable Programmable -170
G1,G2
TISP6NPT2x Series Programmable Overvoltage Protectors Dual SLIC Protection
Dual SLIC VOIP applications, with reduced protection cost line
Standoff Voltage VDRM ITSP Ratings Lightning Surge Standards Protection Voltage GR-1089-CORE GR-1089-CORE ITU-T K20/21 V(BO) 2/10 10/1000 5/310
Device
Delivery Options
G1,G2
TISP6NTP2A
Programmable
G3,G4
TISP6NTP2C
Programmable -170
TISP83121 Dual-Gate Unidirectional Overvoltage Protectors Dual Supply SLIC Protection
protection multiple lines Line Cards
Standoff Voltage VDRM Protection Voltage V(BO) ITSP Ratings Lightning Surge Standards GR-1089-CORE 10/1000 ITU-T K20/21 5/310
Device
Delivery Options
TISP83121
Programmable ±100
TISP820xM Series Dual Unidirectional Reverse Blocking Programmable Overvoltage Protectors Dual Supply SLIC Protection
Protection Infineon PEB4265 Legerity 79R251 SLICs
ITSP Ratings Lightning Surge Standards Standoff Protection Holding Voltage Voltage Current GR-1089-CORE GR-1089-CORE ITU-T K20/21 VDRM V(BO) 2/10 10/1000 5/310 (mA)
Device
Delivery Options
TISP8200M
Programmable
-150
-210
TISP8201M
Programmable
TISP9110LDM Integrated Complementary Buffered-Gate SCRs Dual Polarity SLIC Overvoltage Protection
Integrated ITU-T GR-1089-CORE intrabuilding protection Infineon PEB4265 Legerity 79R251 SLICs
ITSP Ratings Lightning Surge Standards Standoff Protection Holding Voltage Voltage Current GR-1089-CORE GR-1089-CORE ITU-T K20/21 VDRM V(BO) 2/10 10/1000 5/310 (mA)
Device
Delivery Options
Line
Ground
TISP9110L
Programmable +110 -110
+20, -150
Line
`EL' Series Single Bidirectional Primary Overvoltage Protectors GR-974-CORE Designs
Primary Protection 2EL2, 2EL3, 2EL4 Primary Protection Datalines 2EL5 High Exposure Station Protector 2EL6
Protection Voltage V(BO)
ITSP Ratings Lightning Surge Standards GR-1089-CORE 2/10
Device
Delivery Options
ITU-T K20/21 5/310
2EL2 2EL3 2EL4 2EL5
Button Cell Button Cell Button Cell Button Cell Button Cell
7EL2
TISP® Product Dimensions
SMAJ Plastic Surface Mount Diode
Suffix
4.06 4.57 (.160 .180)
2.29 2.92 (.090 .115)
Index Mark needed)
2.00 2.40 (.079 .095)
0.76 1.52 (.030 .060)
1.58 2.16 (.062 .085) 4.83 5.59 (.190 .220)
0.10 0.20 (.004 .008)
1.27 1.63 (.050 .064)
SMBJ Plastic Surface Mount Diode
Suffix
4.06 4.57 (.160 .180)
3.30 3.94 (.130 .155)
Index Mark needed)
2.00 2.40 (.079 .094)
0.76 1.52 (.030 .060)
1.90 2.10 (.075 .083)
0.10 0.20 (.004 .008)
1.96 2.32 (.077 .091)
5.21 5.59 (.205 .220)
DIMENSIONS
MILLIMETERS (INCHES)
SMB03 (Modified DO-214AA Package)
4.06 4.57 (.160 .180)
3.30 3.94 (.130 .155)
2.00 2.40 (.079 .094)
0.76 1.52 (.030 .060) 5.21 5.59 (.205 .220)
1.90 2.10 (.075 .083)
0.10 0.20 (.004 .008) 1.42 1.57 (.056 .062)
0.56 (.022 0.79 (.031
0.71 .028) 0.94 .037)
SOIC Plastic Small Outline
Suffix
4.80 5.00 (0.189 0.197)
5.80 6.20 (0.228 0.244)
INDEX
3.81 4.00 (0.150 0.157)
1.35 1.75 (0.053 0.069)
Places
0.25 0.50 (0.010 0.020)
4.60 5.21 (0.181 0.205)
0.102 0.203 (0.004 0.008) 0.28 0.79 (0.011 0.031)
0.36 0.51 (0.014 0.020) Places Spacing 1.27 (0.050) (see Note places 0.190 0.229 (0.0075 0.0090)
Places
0.51 1.12 (0.020 0.044)
DIMENSIONS
MILLIMETERS (INCHES)
SOIC 8-pin Plastic Small Outline (210 mil)
Suffix
7.40 8.20 (0.291 0.323)
5.00 5.60 (0.197 0.220)
5.00 5.60 (0.197 0.220)
2.20 MAX. (0.087)
1.27 TYP. (0.050)
0.10 MIN. (0.004)
0.35 0.51 (0.014 0.200)
DO92 Cylindrical Plastic
Suffix LMR, LMFR
4.44 5.21 (.175 .205) 3.43 (.135) 3.17 4.19 (.125 .165)
4.44 5.21 (.175 .205) 3.43 (.135) 3.17 4.19 (.125 .165)
MIN.
MIN. 2.03 2.67 (.080 .105)
2.03 2.67 (.080 .105)
2.03 2.67 (.080 .105)
2.03 2.67 (.080 .105)
4.32 5.34 (.170 .210)
4.32 5.34 (.170 .210)
MAX.
2.20 (.086)
MAX.
2.20 (.086)
MAX.
4.00 (.157)
MIN.
12.7 (0.5)
0.40 0.56 (.016 .022)
0.40 0.56 (.016 .022)
VIEW
VIEW
2.40 2.90 (.094 .114) 0.35 0.41 (.014 .016)
1.14 1.40 (.045 .055)
0.35 0.41 (.014 .016) 2.40 2.90 (.094 .114)
2.41 2.67 (.095 .105)
DIMENSIONS
MILLIMETERS (INCHES)
Plastic Single-in-Line
Suffix
9.25 9.75 (0.364 0.384) 3.20 3.40 (0.126 0.134)
Index Notch
8.31 (0.327) MAX. 12.9 (0.492) MAX.
6.10 6.60 (0.240 0.260)
4.267 (0.168) MIN.
2.54 Typical (0.100) (See Note Places 0.203 0.356 (0.008- 0.014)
1.854 (0.073) MAX. 0.559 0.711 (0.022 0.028) Places
PDIP Plastic Dual-in-Line
Suffix
9.25 9.75 (0.364 0.384)
Index Notch
6.10 6.60 (0.240 0.260)
1.78 MAX. (0.070) Places
7.62 8.23 (0.300 0.324)
5.08 MAX. (0.200)
Seating Plane
0.51 MIN. (0.020) 3.17 MIN. (0.125) 0.20 0.36 (0.008 0.014)
0.38 0.53 (0.015 0.021) Places
2.54 Typical (0.100) (see Note Places
8.38 9.40 (0.330 0.370)
DIMENSIONS
MILLIMETERS (INCHES)
9ELX Primary Protector Series
0.508 MAX. (0.020)
Electrode
2.11 2.31 (0.083 0.091)
Sleeve Bidirectional Silicon Chip
0.178 MAX. (0.007) 1.27 1.65 DIA. (0.050 0.065)
Bottom Electrode
3.76 4.27 DIA. (0.148 0.168)
7EL2 Primary Protector
0.508 MAX. (0.020)
Electrode
2.16 2.45 (0.085 0.096)
Sleeve Bidirectional Silicon Chip
0.178 MAX. (0.007)
Bottom Electrode
2.16 2.67 DIA. (0.085 0.105)
6.10 DIA. (0.240)
DIMENSIONS
MILLIMETERS (INCHES)
Button Cell
0.508 MAX. (0.020)
Electrode
2.11 2.31 (0.083 0.091)
Sleeve Bidirectional Silicon Chip
0.178 MAX. (0.007)
Bottom Electrode
1.27 1.65 DIA. (0.050 0.065)
3.76 4.27 DIA. (0.148 0.168)
DIMENSIONS
MILLIMETERS (INCHES)
Diodes
Selection Guide
Bourns offers Transient Voltage Suppressor diodes energy surge protection applications that meet following standards: 61000-4-2, 61000-4-4 61000-4-5 Features Compact package options: DO-214AC (SMA), DO-214AA (SMB) DO-214AB (SMC) Working Peak Reverse Voltages from Breakdown Voltages Typical fast response times less than (Unidirectional), (Bidirectional) Conforms JEDEC standards Easy handle standard pick place equipment Flat configuration minimizes roll away RoHS compliance optional
Minimum Peak Pulse Power Dissipation
CD214A-TX.XX CD214B-TX.XX CD214C-TX.XX 1500
Working Peak Reverse Voltages VRWM
Peak Forward Surge Current Single Half Sine Wave Superimposed Rated Load (JEDEC Method)
Package Reference*
*See data sheet mechanical specification.
CD214A Series (SMA Package)
Electrical Characteristics unless otherwise noted)
Part Number (Unidirectional Device) Part Number (Bidirectional Device) Breakdown Voltage Volts Min. CD214A-T5.0A CD214A-T6.0A CD214A-T6.5A CD214A-T7.0A CD214A-T7.5A CD214A-T8.0A CD214A-T8.5A CD214A-T9.0A CD214A-T10A CD214A-T11A CD214A-T12A CD214A-T13A CD214A-T14A CD214A-T15A CD214A-T16A CD214A-T17A CD214A-T18A CD214A-T20A CD214A-T22A CD214A-T24A CD214A-T26A CD214A-T28A CD214A-T30A CD214A-T33A CD214A-T36A CD214A-T40A CD214A-T43A CD214A-T45A CD214A-T48A CD214A-T51A CD214A-T54A CD214A-T58A CD214A-T60A CD214A-T64A CD214A-T70A CD214A-T75A CD214A-T78A CD214A-T85A CD214A-T90A CD214A-T100A CD214A-T110A CD214A-T120A CD214A-T130A CD214A-T150A CD214A-T160A CD214A-T170A CD214A-T5.0CA CD214A-T6.0CA CD214A-T6.5CA CD214A-T7.0CA CD214A-T7.5CA CD214A-T8.0CA CD214A-T8.5CA CD214A-T9.0CA CD214A-T10CA CD214A-T11CA CD214A-T12CA CD214A-T13CA CD214A-T14CA CD214A-T15CA CD214A-T16CA CD214A-T17CA CD214A-T18CA CD214A-T20CA CD214A-T22CA CD214A-T24CA CD214A-T26CA CD214A-T28CA CD214A-T30CA CD214A-T33CA CD214A-T36CA CD214A-T40CA CD214A-T43CA CD214A-T45CA CD214A-T48CA CD214A-T51CA CD214A-T54CA CD214A-T58CA CD214A-T60CA CD214A-T64CA CD214A-T70CA CD214A-T75CA CD214A-T78CA CD214A-T85CA CD214A-T90CA CD214A-T100CA CD214A-T110CA CD214A-T120CA CD214A-T130CA CD214A-T150CA CD214A-T160CA CD214A-T170CA 6.40 6.67 7.22 7.78 8.33 8.89 9.44 10.0 11.1 12.2 13.3 14.4 15.6 16.7 17.8 18.9 20.0 22.2 24.4 26.7 28.9 31.1 33.3 36.7 44.4 47.8 53.3 56.7 64.4 66.7 71.1 77.8 83.3 86.7 94.4 Max. (mA) 7.00 7.37 7.98 8.60 9.21 9.83 10.4 11.1 12.3 13.2 14.7 15.9 17.2 18.5 19.7 20.9 22.1 24.5 26.9 29.5 31.9 34.4 36.8 40.6 44.2 49.1 52.8 55.3 58.9 62.7 66.3 71.2 73.7 78.6 86.0 92.1 95.8 Working Peak Max. Reverse Reverse Leakage Voltage VRWM VRWM (Volts) (uA) 1600 1600 1000 Max. Reverse Max. Reverse Voltage Surge Current IRSM VRSM (Volts) 10.3 11.2 12.0 12.9 13.6 14.4 15.4 17.0 18.2 19.9 21.5 23.2 24.4 26.0 27.6 29.2 32.4 35.5 38.9 42.1 45.4 48.4 53.3 58.1 64.5 69.4 72.7 77.4 82.4 87.1 93.6 96.8 IRSM (Amps) 43.5 38.8 35.7 33.3 31.0 29.4 27.7 26.0 23.5 22.0 20.1 18.6 17.2 16.4 15.3 14.5 13.7 12.3 11.2 10.3
Part Mrkg
Part Mrkg
Notes: Suffix denotes tolerance device. Suffix denotes Bidirectional device. Suffix "CA" denotes tolerance Bidirectional device. tolerance devices available shown above. Bidirectional devices having Volts under, limit double. Unidirectional devices having Sine Wave pulse width. RoHS compliant devices, suffix "LF" part number.
CD214B Series (SMB Package)
Electrical Characteristics unless otherwise noted)
Part Number (Unidirectional Device) Part Number (Bidirectional Device) Breakdown Voltage Volts Min. CD214B-T5.0A CD214B-T6.0A CD214B-T6.5A CD214B-T7.0A CD214B-T7.5A CD214B-T8.0A CD214B-T8.5A CD214B-T9.0A CD214B-T10A CD214B-T11A CD214B-T12A CD214B-T13A CD214B-T14A CD214B-T15A CD214B-T16A CD214B-T17A CD214B-T18A CD214B-T20A CD214B-T22A CD214B-T24A CD214B-T26A CD214B-T28A CD214B-T30A CD214B-T33A CD214B-T36A CD214B-T40A CD214B-T43A CD214B-T45A CD214B-T48A CD214B-T51A CD214B-T54A CD214B-T58A CD214B-T60A CD214B-T64A CD214B-T70A CD214B-T75A CD214B-T78A CD214B-T85A CD214B-T90A CD214B-T100A CD214B-T110A CD214B-T120A CD214B-T130A CD214B-T150A CD214B-T160A CD214B-T170A CD214B-T5.0CA CD214B-T6.0CA CD214B-T6.5CA CD214B-T7.0CA CD214B-T7.5CA CD214B-T8.0CA CD214B-T8.5CA CD214B-T9.0CA CD214B-T10CA CD214B-T11CA CD214B-T12CA CD214B-T13CA CD214B-T14CA CD214B-T15CA CD214B-T16CA CD214B-T17CA CD214B-T18CA CD214B-T20CA CD214B-T22CA CD214B-T24CA CD214B-T26CA CD214B-T28CA CD214B-T30CA CD214B-T33CA CD214B-T36CA CD214B-T40CA CD214B-T43CA CD214B-T45CA CD214B-T48CA CD214B-T51CA CD214B-T54CA CD214B-T58CA CD214B-T60CA CD214B-T64CA CD214B-T70CA CD214B-T75CA CD214B-T78CA CD214B-T85CA CD214B-T90CA CD214B-T100CA CD214B-T110CA CD214B-T120CA CD214B-T130CA CD214B-T150CA CD214B-T160CA CD214B-T170CA 6.40 6.67 7.22 7.78 8.33 8.89 9.44 10.0 11.1 12.2 13.3 14.4 15.6 16.7 17.8 18.9 20.0 22.2 24.4 26.7 28.9 31.1 33.3 36.7 44.4 47.8 53.3 56.7 64.4 66.7 71.1 77.8 83.3 86.7 94.4 Max. (mA) 7.25 7.67 8.30 8.95 9.58 10.2 10.8 11.5 12.8 14.4 15.3 16.5 17.9 19.2 20.5 21.7 23.3 25.5 28.0 30.7 32.2 35.8 38.3 42.2 46.0 51.1 54.9 57.5 61.3 65.2 74.6 76.7 81.8 89.5 95.8 99.7 Working Peak Max. Reverse Reverse Leakage Voltage VRWM VRWM (Volts) (uA) Max. Reverse Max. Reverse Voltage Surge Current IRSM VRSM (Volts) 10.3 11.2 12.0 12.9 13.6 14.4 15.4 17.0 18.2 19.9 21.5 23.2 24.4 26.0 27.6 29.2 32.4 35.5 38.9 42.1 45.4 48.4 53.3 58.1 64.5 69.4 72.7 77.4 82.4 87.1 93.6 96.8 IRSM (Amps) 65.2 58.3 53.6 50.0 46.5 44.1 41.7 39.0 35.3 33.0 30.2 27.9 25.8 24.0 23.1 21.7 20.5 18.5 16.9 15.4 14.2 13.2 12.4 11.3 10.3
Part Mrkg
Part Mrkg
Notes: Suffix denotes tolerance device. Suffix denotes Bidirectional device. Suffix "CA" denotes tolerance Bidirectional device. tolerance devices available shown above. Bidirectional devices having Volts under, limit double. Unidirectional devices having Sine Wave pulse width. RoHS compliant devices, suffix "LF" part number.
CD214C Series (SMC Package)
Electrical Characteristics unless otherwise noted)
Part Number (Unidirectional Device) Part Number (Bidirectional Device) Breakdown Voltage Volts Min. CD214C-T5.0A CD214C-T6.0A CD214C-T6.5A CD214C-T7.0A CD214C-T7.5A CD214C-T8.0A CD214C-T8.5A CD214C-T9.0A CD214C-T10A CD214C-T11A CD214C-T12A CD214C-T13A CD214C-T14A CD214C-T15A CD214C-T16A CD214C-T17A CD214C-T18A CD214C-T20A CD214C-T22A CD214C-T24A CD214C-T26A CD214C-T28A CD214C-T30A CD214C-T33A CD214C-T36A CD214C-T40A CD214C-T43A CD214C-T45A CD214C-T48A CD214C-T51A CD214C-T54A CD214C-T58A CD214C-T60A CD214C-T64A CD214C-T70A CD214C-T75A CD214C-T78A CD214C-T85A CD214C-T90A CD214C-T100A CD214C-T110A CD214C-T120A CD214C-T130A CD214C-T150A CD214C-T160A CD214C-T170A CD214C-T5.0CA CD214C-T6.0CA CD214C-T6.5CA CD214C-T7.0CA CD214C-T7.5CA CD214C-T8.0CA CD214C-T8.5CA CD214C-T9.0CA CD214C-T10CA CD214C-T11CA CD214C-T12CA CD214C-T13CA CD214C-T14CA CD214C-T15CA CD214C-T16CA CD214C-T17CA CD214C-T18CA CD214C-T20CA CD214C-T22CA CD214C-T24CA CD214C-T26CA CD214C-T28CA CD214C-T30CA CD214C-T33CA CD214C-T36CA CD214C-T40CA CD214C-T43CA CD214C-T45CA CD214C-T48CA CD214C-T51CA CD214C-T54CA CD214C-T58CA CD214C-T60CA CD214C-T64CA CD214C-T70CA CD214C-T75CA CD214C-T78CA CD214C-T85CA CD214C-T90CA CD214C-T100CA CD214C-T110CA CD214C-T120CA CD214C-T130CA CD214C-T150CA CD214C-T160CA CD214C-T170CA 6.40 6.67 7.22 7.78 8.33 8.89 9.44 10.0 11.1 12.2 13.3 14.4 15.6 16.7 17.8 18.9 20.0 22.2 24.4 26.7 28.9 31.1 33.3 36.7 44.4 47.8 53.3 56.7 64.4 66.7 71.1 77.8 83.3 86.7 94.4 Max. (mA) 7.23 7.67 8.95 9.58 10.2 10.8 11.5 12.8 14.4 15.3 16.5 17.9 19.2 20.5 21.7 23.3 25.5 30.7 32.2 35.8 38.3 42.2 51.1 54.9 57.5 61.3 65.2 74.6 76.7 81.8 89.5 95.8 99.7 108.2 115.5 217.5 Working Peak Max. Reverse Reverse Leakage Voltage VRWM VRWM (Volts) (uA) 1000 1000 Max. Reverse Max. Reverse Voltage Surge Current IRSM VRSM (Volts) 10.3 11.2 12.0 12.9 13.6 14.4 15.4 17.0 18.2 19.9 21.5 23.2 24.4 26.0 27.6 29.2 32.4 35.5 38.9 42.1 45.4 48.4 53.3 58.1 64.5 69.4 72.7 77.4 82.4 87.1 93.6 96.8 IRSM (Amps) 145.6 133.9 116.3 110.3 104.2 97.4 88.2 82.4 75.3 69.7 64.7 61.5 57.7 53.3 51.4 46.3 42.2 38.6 35.6 28.1 25.8 23.3 21.6 20.6 19.4 18.2 17.2 15.5 14.6 13.3 12.4 11.4 10.4 10.3
Part Mrkg
Part Mrkg
Notes: Suffix denotes tolerance device. Suffix denotes Bidirectional device. Suffix "CA" denotes tolerance Bidirectional device. tolerance devices available shown above. Bidirectional devices having Volts under, limit double. Unidirectional devices having Sine Wave pulse width. RoHS compliant devices, suffix "LF" part number.
Bourns® Multifuse® Resettable Fuses
Selection Guide
range Bourns® Multifuse® Polymer resettable fuses designed limit overcurrents telecommunications equipment well many other types equipment. Adequate overcurrent protection needed allow equipment comply with international standards. Overcurrents caused power lightning flash disturbances that induced conducted telephone line. extensive range offers multiple voltage variants suit specific application requirements. Designed Withstand Power Cross Available Matched Resistance "Bins" Agency Approvals CSA, Popular Footprints Packaging Resistance Lead Free Options Custom Designs Available Package Types: Disk, Strap
Applications
Central Office Access Equipment Hybrid-Fiber Coax Power over Ethernet
Features
Resettable Circuit Protection Designed Withstand Lightning Surge
Style
Style
Style
MF-R/90 Series Radial Leaded, Volts
Typical Applications: Hybrid-fiber coax, power passing taps, Power over Ethernet
Ihold max. (Amps (Volts) max. (Amps) Initial Resistance (Ohms Min.) 0.45 0.45 0.37 Hour (R1) Post-Trip Resistance (Ohms Max.) 1.65
RoHS Compliant
Dimensions [mm/(in)] Style Max. 10.9 (0.43) 10.3 (0.4) 11.9 (0.47) Max. 14.0 (0.55) 10.3 (0.4) 15.5 (0.61) (0.201) Nom.
Model
MF-R055/90 MF-R055/90U MF-R075/90
0.55 0.55 0.75
MF-SM013/250 Series Surface Mount, Volts, Vrms Short Duration Interrupt
Applicable Standards: ITU-T K.20/21/45, GR-1089-CORE Intrabuilding
Hour (R1) Max. Interrupt Ihold Initial Post-Trip Ratings (Amps max. max. Resistance Resistance (Volts) (Amps) (Ohms Volts Amps Min.) (Ohms Max.) (Vrms) 0.13 MF-SM013/250-B-2 MF-SM013/250-C-2 20.0 (0.370) (0.133) (0.291)
RoHS Compliant
Dimensions [mm/(in)] Style Max. Max. Nom.
Model
MF-SM013/250-2 MF-SM013/250-A-2
MF-RX/250 Series Radial Leaded, Volts, Vrms Short Duration Interrupt
Fast Trip, Small Package. Applicable Standards: ITU-T K.20/21/45, GR-1089-CORE Intrabuilding
Hour (R1) Max. Interrupt Ihold Initial Post-Trip Ratings (Amps max. max. Resistance Resistance (Volts) (Amps) (Ohms (Ohms Volts Amps Min.) Max.) (Vrms) 0.12 0.12 0.12 0.12 0.12 0.12 0.12 0.12 0.145 0.145 0.145 0.145 0.145 0.18 0.18 10.0 10.0 16.0 16.0 14.0 16.0 16.0 16.0 16.0 16.0 14.0 12.0 14.0 14.0 12.0
RoHS Compliant
Dimensions [mm/(in)] Style Max. Max. Nom.
Model
MF-RX012/250
11.0 (0.256) (0.433) 11.0 (0.256) (0.433) 11.0 (0.256) (0.433) 11.0 (0.256) (0.433) 11.0 (0.256) (0.433) 11.0 (0.256) (0.433) 11.0 (0.256) (0.433) 10.0 (0.236) (0.394) (0.201) 11.0 (0.256) (0.433) 11.0 (0.256) (0.433) 11.0 (0.256) (0.433) 11.0 (0.256) (0.433) 10.0 (0.236) (0.394) 11.0 13.6 (0.433) (0.535) 10.4 12.6 (0.409) (0.496)
MF-RX012/250-A MF-RX012/250-C MF-RX012/250-F MF-RX012/250-1 MF-RX012/250-2 MF-RX012/250-T MF-RX012/250U MF-RX014/250 MF-RX014/250-A MF-RX014/250-B MF-RX014/250-T MF-RX014/250U MF-RX018/250 MF-RX018/250U
MF-R/600 Series Radial Leaded, Volts, Vrms Short Duration Interrupt
Applicable Standards: UL60950, GR-1089-CORE, ITU-T K.20/21/45
Hour (R1) Max. Interrupt Ihold Initial Post-Trip Ratings (Amps max. max. Resistance Resistance (Volts) (Amps) (Ohms Volts Amps Min.) (Ohms Max.) (Vrms) 0.15 0.15 0.15 0.15 0.16 0.16 0.16 22.0 20.0 22.0 22.0 18.0 16.0 17.0
RoHS Compliant
Dimensions [mm/(in)] Style Max. 13.5 (0.531) 13.5 (0.531) 13.5 (0.531) 13.5 12.6 (0.531) (0.496) (0.236) 16.0 (0.629) 16.0 (0.629) 16.0 (0.629) Max. Nom.
Model
MF-R015/600
MF-R015/600-A MF-R015/600-B MF-R015/600-F MF-R016/600 MF-R016/600-A MF-R016/600-1
Device Options:
Coated Uncoated Un-Tripped Pre-Tripped Narrow Resistance Bands Custom Specified Resistance Bands Resistance Sort Bins Disks With Without Solder Coating
Packaging Options:
Bulk Packed Tape Reel Custom Lead Lengths
Selection Surface Mount Voltage Products
Features
Industry Standard Sizes Resettable Circuit Protection Agency Approvals CSA, Popular Footprints Packaging Resistance Lead Free Options Custom Designs Available
Style
Side View View Bottom View Side View Bottom View Side View
Applications
Computers Peripherals General Electronics Automotive Set-top Boxes Servers Routers
Style
Style
MF-SMDF Series Surface Mount (Lead Free), 10-60 Volts
2018 Package. Typical Application: Power over Ethernet. Applicable Standard: IEEE 802.3AF.
Ihold max. (Amps (Volts) max. (Amps) Initial Resistance (Ohms Min.) 0.20 0.07 Hour (R1) Post-Trip Resistance (Ohms Max.) 0.95 5.44 (0.214) MF-SMDF150 1.50 0.175 4.93 (0.194)
RoHS Compliant
Dimensions [mm/(in)] Style Max. Max. Nom. 1.09 (0.043) 0.85 (0.033)
Model
MF-SMDF050
0.50
MF-SM Series Surface Mount, 15-33 Volts
3425 Package. Typical Application: Circuit Level Protection.
Ihold max. (Amps (Volts) max. (Amps) Initial Resistance (Ohms Min.) 0.06 0.06 0.045 0.024 Hour (R1) Post-Trip Resistance (Ohms Max.) 0.25 0.23 0.125 0.085 9.50 (0.374) 3.00 (0.118) 6.71 (0.264) Dimensions [mm/(in)] Style Max. Max. Nom.
Model
MF-SM150 MF-SM150/33 MF-SM200 MF-SM250
1.50 1.50 2.00 2.50
Note: RoHS compliant adding part number, i.e. MF-SM150-2-99.
MF-SM Series Surface Mount, 6-60 Volts
2920 Package. Typical Application: Circuit Level Protection.
Ihold max. (Amps (Volts) max. (Amps) Initial Resistance (Ohms Min.) 0.90 0.35 0.23 0.12 0.12 0.07 0.025 Hour (R1) Post-Trip Resistance (Ohms Max.) 4.80 1.40 1.00 0.48 0.41 0.25 0.075 7.98 (0.314) 3.18 (0.125) 5.44 (0.214) Dimensions [mm/(in)] Style Max. Max. Nom.
Model
MF-SM030 MF-SM050 MF-SM075 MF-SM100 MF-SM100/33 MF-SM125 MF-SM260
0.30 0.50 0.75 1.10 1.10 1.25 2.60
Note: RoHS compliant adding part number.
MF-MSMF Series Surface Mount (Lead Free), 6-60 Volts
1812 Package. Typical Application: 2.0.
Ihold max. (Amps (Volts) max. (Amps) Initial Resistance (Ohms Min.) 0.70 0.40 0.40 0.30 0.15 0.11 0.11 0.04 0.04 0.035 0.03 0.035 0.020 0.015 0.015 Hour (R1) Post-Trip Resistance (Ohms Max.) 15.0 6.50 6.00 3.00 1.00 0.45 0.45 0.21 0.21 0.14 0.12 0.099 0.08 0.85 (0.033) 4.73 (0.186) 3.41 (0.134) 1.10 (0.043)
RoHS Compliant
Dimensions [mm/(in)] Style Max. Max. Nom.
Model
MF-MSMF010 MF-MSMF014 MF-MSMF020 MF-MSMF030 MF-MSMF050 MF-MSMF075 MF-MSMF075/24 MF-MSMF110 MF-MSMF110/16 MF-MSMF125 MF-MSMF150 MF-MSMF160 MF-MSMF200 MF-MSMF250/16 MF-MSMF260
0.10 0.14 0.20 0.30 0.50 0.75 0.75 1.10 1.10 1.25 1.50 1.60 2.00 2.50 2.60
13.2
MF-MSMD Series Surface Mount, 6-60 Volts
1812 Package. Typical Application: 2.0.
Ihold max. (Amps (Volts) max. (Amps) Initial Resistance (Ohms Min.) 0.70 0.40 0.40 0.30 0.15 0.11 0.04 0.035 0.03 0.035 0.020 0.015 Hour (R1) Post-Trip Resistance (Ohms Max.) 15.000 6.500 6.000 3.000 1.000 0.450 0.210 0.140 0.120 0.099 0.100 0.080 4.73 (0.186) 3.41 (0.134) Dimensions [mm/(in)] Style Max. Max. Nom. 0.81 (0.032) 0.81 (0.032) 0.81 (0.032) 0.81 (0.032) 0.62 (0.024) 0.62 (0.024) 0.62 (0.024) 0.48 (0.019) 0.48 (0.019) 0.48 (0.019) 0.48 (0.019) 0.48 (0.019)
Model
MF-MSMD010 MF-MSMD014 MF-MSMD020 MF-MSMD030 MF-MSMD050 MF-MSMD075 MF-MSMD110 MF-MSMD125 MF-MSMD150 MF-MSMD160 MF-MSMD200 MF-MSMD260
0.10 0.14 0.20 0.30 0.50 0.75 1.10 1.25 1.50 1.60 2.00 2.60
13.2
MF-USMD Series Surface Mount, 6-30 Volts
1210 Package. Typical Application: 2.0.
Ihold max. (Amps (Volts) max. (Amps) Initial Resistance (Ohms Min.) 2.80 0.80 0.40 0.20 0.18 0.07 0.05 Hour (R1) Post-Trip Resistance (Ohms Max.) 50.0 15.0 5.00 1.30 0.90 0.45 0.21 3.43 (0.135) 2.80 (0.110) Dimensions [mm/(in)] Style Max. Max. Nom. 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.62 (0.024) 0.62 (0.024) 0.62 (0.024) 0.48 (0.019)
Model
MF-USMD005
0.05 0.10 0.20 0.35 0.50 0.75 1.10
13.2
MF-USMD010 MF-USMD020 MF-USMD035 MF-USMD050 MF-USMD075 MF-USMD110
MF-NSMF Series Surface Mount (Lead Free), 6-30 Volts
1206 Package. Typical Application:
Ihold max. (Amps (Volts) max. (Amps) Initial Resistance (Ohms Min.) 1.50 0.60 0.30 0.15 0.10 0.06 0.03 Hour (R1) Post-Trip Resistance (Ohms Max.) 2.60 1.20 0.70 0.29 0.20 0.13 (0.134) (0.071)
RoHS Compliant
Dimensions [mm/(in)] Style Max. Max. Nom. 1.10 (0.043) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.70 (0.028) 0.70 (0.028) 0.70 (0.028)
Model
MF-NSMF012 MF-NSMF020 MF-NSMF035 MF-NSMF050 MF-NSMF075 MF-NSMF110 MF-NSMF150
0.12 0.20 0.35 0.50 0.75 1.10 1.50
13.2
Selection Radial Voltage Products Features
Bulk Tape Reel Packaging Resettable Circuit Protection Agency Approvals CSA, Popular Footprints Packaging Resistance Lead Free Options Custom Designs Available
Style
Applications
Computers Peripherals General Electronics
Style
Style
Style
Style
MF-RX/72 Series Radial Leaded, Volts
Typical Application: Transformer
Ihold max. (Amps (Volts) max. (Amps) Initial Resistance (Ohms Min.) 0.15 0.12 0.09 72.0 0.08 0.05 0.04 0.03 Hour (R1) Post-Trip Resistance (Ohms Max.) 0.38 0.30 0.22 0.19 0.13 0.10 0.08
RoHS Compliant
Dimensions [mm/(in)] Style Max. 10.84 (0.427) 12.26 (0.483) 13.94 (0.549) 15.18 (0.598) 17.84 (0.702) 20.67 (0.814) 23.51 (0.926) Max. 16.8 (0.663) 18.3 (0.720) 19.9 (0.785) 21.2 (0.834) 23.8 (0.939) 26.7 (1.050) 29.6 (1.162) Nom. (0.021) (0.021) (0.021) (0.021) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402)
Model
MF-RX110/72
1.10 1.35 1.60 1.85 2.50 3.00 3.75
MF-RX135/72 MF-RX160/72 MF-RX185/72 MF-RX250/72 MF-RX300/72 MF-RX375/72
MF-R Series Radial Leaded, 16-60 Volts
Typical Application: Transformer
Ihold max. (Amps (Volts) max. (Amps) Initial Resistance (Ohms Min.) 0.76 0.52 0.41 0.27 0.18 0.14 0.07 0.065 0.055 0.04 0.025 0.025 0.02 0.01 0.01 0.005 0.005 0.005 0.005 0.003 Hour (R1) Post-Trip Resistance (Ohms Max.) 1.29 1.17 0.72 0.47 0.22 0.27 0.17 0.15 0.11 0.07 0.07 0.08 0.05 0.05 0.04 0.03 0.03 0.02 0.014 Dimensions [mm/(in)] Style Max. (0.315) (0.291) (0.291) (0.291) (0.291) (0.291) (0.291) (0.311) (0.382) 10.4 (0.409) 11.7 (0.461) (0.291) (0.350) (0.350) 10.2 (0.402) 12.0 (0.472) 12.0 (0.472) 11.4 (0.449) 12.0 (0.472) 14.4 (0.567) 17.4 (0.685) 19.3 (0.760) 22.1 (0.870) 24.2 (0.953) 24.2 (0.953) 24.2 (0.953) Max. (0.327) 12.7 (0.500) 12.7 (0.500) 12.7 (0.500) 12.7 (0.500) 13.4 (0.528) 13.7 (0.539) 13.7 (0.539) 15.2 (0.598) 16.0 (0.630) 16.7 (0.657) 12.2 (0.480) 14.0 (0.551) 18.9 (0.744) 16.8 (0.661) 18.4 (0.724) 18.3 (0.720) 18.3 (0.720) 18.3 (0.720) 24.8 (0.976) 24.9 (0.980) 31.9 (1.256) 29.8 (1.173) 32.9 (1.295) 32.9 (1.295) 32.9 (1.295) Nom. (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) (0.021) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402)
Model
MF-R005
0.05 0.17 0.25 0.65 0.75 1.35 1.85
MF-R010 MF-R017 MF-R020 MF-R025 MF-R030
MF-R040 MF-R050 MF-R065 MF-R075 MF-R090 MF-R090-0-9
MF-R110 MF-R135 MF-R160 MF-R185 MF-R250
MF-R250-0-10 MF-R300 MF-R400 MF-R500 MF-R600 MF-R700 MF-R800 MF-R900 MF-R1100
Note: RoHS compliant adding part number, i.e. MF-R010-2-99.
Line Protection Modules
Features
Precision Thick-film Technology Withstands Lightning Power Cross Assists Compliance with Telecordia (Bellcore) GR-1089 Assists Compliance with ITU-T K.20 Surface Mount Solution Designed Fail Safely under Fault Conditions Optional One-shot Thermal Fuse Optional Resettable 497A Recognized Non-flammable Standard Offerings Custom Designs Full Qualification Test Capabilities Central Office, Remote Customer Premises Equipment Applications Include: Analog Line Cards xDSL Line Cards Pairgain VoIP systems External LCAS Protection Intra-buildings
Custom Designs
addition various standard off-the-shelf versions available, Bourns offers extensive custom options. Examples include: Variety Packages, e.g. Vertical Horizontal Packaging Options, e.g. Trays, Tape Reel, Bulk Additional Resistors, e.g. Ringing Power Resistors Additional Components, e.g. Fuses, PTCs, Overvoltage Protection Resistors from Ratio Matching: Down Less with Special Limitations more information custom packaging options please page full capability. Please contact your local representative discuss custom packaging options.
Model
Schematic
Dimensions
51.05 MAX. (2.010) 2.03 (.080) MAX.
Description
MAX.
11.30 (.445) (.020)
4B08B-511-500
3.43 (.135 .015) 7.62 (.300) 0.36 (.014)
matching Thermal fuses
5.08 (.200)
10.16 (.400)
2.54 (.100)
25.40 0.50 (1.000 .020)
2.03 (.080) MAX.
Functional Schematic*
4B04B-502-RC
*User must short pins circuit board.
11.30 0.50 (.450 .020) 2.54 .127 (.100 .005) 17.78 .254 (.700 .010) 2.54 .127 (.100 .005)
0.36 (.014) MAX.
Values 5.6-100 Thermal fuse
33.27 MAX. (1.310)
3.18 (.125) MAX. 1.27 (.050) 2.29 (.090) MAX. 0.36 (.014) MAX.
4B06B-512-RC
11.43 MAX. (.450)
1.27 (.050) 20.32 (.800)
2.54 (.100)
Values 5.6-100 matching Thermal fuses
DIMENSIONS
MILLIMETERS (INCHES)
Model
Schematic
5.10 (0.200 .005)
Dimensions
2.54 (0.100 .005) 22.35 (0.880 .005)
RADIUS (.015) MAX.
Description
1.02 (0.040 .002)
22.35 (0.880 .002)
4A08P-505-RC
0.51 (0.020 .002) 2.54 (0.100 .005) 12.70 (0.500 .005)
4.10 (0.160 .010) 22.50 (0.885 .015) 1.270 .127 1.270 .127 (0.050 .005) (0.050 .005) 0.25 (0.010 .002)
Values 5.6-100 matching
32.81 MAX. (1.292)
MAX. 7.87 (.310) 2.80 (.110) 12.70 (.500) 14.59 (.575) 2.54 (.100 .005) 4.07 (.160 .010)
4A12P-516-500
4A12P-516-500 DCODE 3.72 (.146) 10.16 (.400 .005) 5.08 (.200 .005)
matching Thermal fuses
25.65 MAX. (1.010) 12.32 (.485) MAX. 2.54 (.100) PLCS. 4B06B-514-500 DCODE
4.32 (.170) MAX. 3.43 (.135 .015) 2.54 (.100) PLCS. 0.36 (.014) MAX.
4B06B-514-500
5.08 (.200) PLCS.
matching Resettable Multifuse® PPTC
APPROXIMATE FUSE LOCATIONS APPROXIMATE TISP® LOCATION 4.57 (.180) MAX.
61089B
35.56 MAX. (1.400)
4B07B-530-400
MAX.
12.70 (.500)
4B07B-530-400 DCODE
3.43 (.135 .015) 1.27 PLCS. (.050)
20.32 (.800)
MAX. 1.91 (.075) MAX. 0.36 (.014)
matching Integrated overvoltage TISP
PLCS. 2.54 (.100)
TISP V(B01) TISP V(B02)
APPROXIMATE FUSE LOCATIONS APPROXIMATE TISP® LOCATION 4.57 (.180) MAX.
TISP TISP
33.02 MAX. (1.300)
4B06B-540-125/219
MAX.
11.43 (.450)
4B06B-540-V(B01) /V(B02) DCODE
3.43 (.135 .015) 1.27 PLCS. (.050)
20.32 (.800)
PLCS. 2.54 (.100)
MAX. 1.91 (.075) 0.97 (.038) 0.36 MAX. (.014)
matching Integrated overvoltage TISP
DIMENSIONS
MILLIMETERS (INCHES)
Bourns® TelefuseTelecom Fuses
Selection Guide
Features
Telecommunication Circuit Applications Requiring Current Protection with High Surge Tolerance Overcurrent Protection Telcordia GR-1089-CORE 1950/60950 Ideal Protecting Central Office Customer Premises Equipment, including POTS, T1/E1, ISDN xDSL circuits Model B1250T Allows Overcurrent Compliance with Telecom Specifications including Telcordia GR-1089-CORE, 60950 K.20, K.21 K.44 Model B0500T Lower Current Version Applications where Faster Opening Time Required Bourns® TISP® Thyristor Surge Protector Products Recommended Overvoltage Section Circuit Agency Recognition: File: E198545
Model Number
Ampere Rating
Voltage Rating (Vrms)
Typical Cold Resistance (ohms)
Peak Surge Current* (Amps)
Power Fault Clearing Time Max. (minutes)
Maximum Power Dissipation
B0500T
0.500
0.350
0.25
B1250T
1.25
0.090
0.40
pulses 10/1000
Body Material: Ceramic with plated brass caps Solder: Lead free Packaging: 2,000 pcs. reel
Product Dimensions
2.03 .102 (.080 .004)
Recommended Layout
3.81 (.15) 4.06 (.16)
9.65 .254 (.38 .01)
3.05 .127 (.120 .005) 3.05 .127 (.120 .005) DIMENSIONS MILLIMETERS (INCHES)
5.08 (.20)
Components
Overview
Electrostatic Discharge (ESD) transfer electric charge between bodies different electrostatic potential proximity through direct contact. most common event occurs from touching metal doorknob elevator button after walking across carpet. Walking across carpet shoes with insulating soles causes build static electricity person. effect, person becomes charged capacitor which discharges metal object. International Electrotechnical Commission (IEC) developed human model test generator which would allow designers verify equipment performance. defines test current impulse having rise time less than decay time shown graph. standard 61000-4-2 (2001-04) specifies four standard peak test generator voltages discharge contact discharge together with higher user defined level. Integrated Circuits (ICs) sensitive devices their manufacturers design protection elements into increase robustness. However, these protection circuits cost design consuming silicon real estate. manufacturers design withstand minimum 61000-4-2 contact discharge voltage provide protection during board manufacturing process. Human body voltages nature determined more, which damage highest standard discharge voltage IEC610004-2 take this into account. Therefore, common practice protect "people interactive" data ports level avoid product damage during installation, servicing. Therefore, external protector provides main level protection with protection elements providing residual protection.
IEC61000-4-2 Level Level Level Level Level
Contact Voltage (kV)
Discharge Voltage (kV)
Peak Contact Current 22.5
Contact Current
Contact Current
Bourns® ChipGuard® Clamp Protection Products
Selection Guide
Bourns® ChipGuard® electrostatic discharge (ESD) protectors based multilayer zinc oxide varistor (MLV) technology. technology provides excellent electrical performance with competitive solution many requirements.
Features
Designed protect sensitive electronic circuits from threat 61000-4-2 level 0402 0603 type packages
Series General Protection
Power Supplies, Frequency Signal Control Line Protection
Continuous Operating Voltage CG0402MLA-5.5MG CG0402MLA-14KG CG0402MLA-18KG CG0603MLA-5.5ME CG0603MLA-14KE CG0603MLA-18KE CG0603MLA-26KE Impulse Clamping WCapacitance Current Voltage (Max.) (pF) Typ. I(Max.) Vrms 8/20 10/1000 8/20 0.05
Model
Series High Speed Data Communication Ports
2.0, IEEE-1394, SCSI, DVI, Antenna Ethernet
Continuous Operating Voltage Typ. CG0603MLC-05E CG0603MLC-12E Max. Clamping Voltage Typ. Max. Off-state Current Max.
Vrms
Trigger Voltage
max. rating
Capacitance Coff Max. Max.
Series High Speed Data Applications
2.0, IEEE-1394, 10/100 Ethernet
Continuous Operating Voltage Max. Breakdown Voltage Typ. Clamping Voltage 8/20 Max. Off-state Current (µA) Max. Capacitance COFF (pF) Max.
Model
CG0402MLD-12G CG0603MLD-12E
Series High Speed Protection Lines
Ethernet, RS232, RS485 ports
Continuous Operating Voltage Model Vrms
Max.
Typ. Max.
Clamping Voltage VCLAMP Typ.
Contact 8/20
Off-state Current (µA) Max.
Capacitance (pF) Max.
Vrms
CG0402MLE-18G CG0603MLE-18E
Notes: electrical characteristics unless otherwise stated. Bourns® ChipGuard® electrostatic discharge (ESD) protectors currently limited small range voltage options. However, process allows wider range manufactured. Should voltage that highlighted current selection required, please inquire with your local representative Bourns plans expand family future.
Diode Arrays Protection
Selection Guide
Bourns offers family Diode Arrays protection. protection implemented using Zener diodes Chip Scale Package (CSP) connected directly port, alternatively using Schottky diodes leaded QSOP package connected rail-to-rail configuration. Depending application, number ports protection maximum capacitance levels selected from table.
Features
Diode Array Stable TFOS Technology JEDEC Standard Packages Protection: IEC61000-4-2
Applications
Bidirectional Parallel Port Communications Computers Peripherals Instrumentation
2DAA Diode Array Package Schematic
EXT1 EXT4
2DAB Diode Array Package Schematic
EXT1 EXT4
EXT5
EXT2
EXT3
EXT2
EXT3
2DAC Diode Array Package Schematic
2DAD Diode Array Package Schematic
EXT1 EXT2
EXT4
EXT3
2DEA Diode Array Package Schematic
Application
Ports
Value (pF) 10.5
Withstand (IEC 61000-4-2) Minimum
Part Numbers Tape Reel 2DAA-F6R 2DAB-F6R Tubes 2DEA-2-Q24T
Uni) Diode Array
Contact
2DAC-C16R 2DAD-C5R 2DEA-2-Q24R
Note: Lead Free solution, "LF" suffix part number above.
Package
0.432 0.559 (0.017 0.022) DIA. (0.012)
Package
0.490 0.524 (0.019 0.021) 0.15 0.005 DIA. (0.006 0.0002) 0.435 (0.017)
0.50 (0.020) 1.475 1.525 (0.058 0.060)
0.435 (0.017)
1.285 1.375 (0.051 0.054)
0.50 (0.020)
0.330 0.457 (0.013 0.018)
0.180 0.280 (0.007 0.011) 0.50 (0.020) 0.971 1.001 (0.038 0.039)
0.180 0.280 (0.007 0.011)
0.414 0.424 (0.016 0.017)
0.180 0.280 (0.007 0.011) 0.50 (0.020) 0.965 1.015 (0.038 0.040)
0.180 0.280 (0.007 0.011)
DIMENSIONS
MICRONS (MILS)
DIMENSIONS
MICRONS (MILS)
Package
BUMP A1/PIN INDICATOR (33.78 1.57) 428.5 (16.87 1.78) 248.5 (9.78 1.78)
QSOP Package Dimensions
8.56 8.74 (.337 .344) .635 TYP. (.025)
3.81 3.99 (.150 .157)
(19.69)
DIA. (11.81)
2177 (85.71 1.78) BOURNS LOGO
(19.69)
(8.86 0.79)
248.5 (9.78 1.78)
(1.78 1.78) 1997 (78.62 1.78)
(1.78 1.78)
(.008 .012) 1.35 1.75 (.053 .069)
DIMENSIONS
MICRONS (MILS)
(.004 .010)
(.007 .010)
5.80 6.20 (.228 .244)
1.27 (.016 .050)
DIMENSIONS
MILLIMETERS (INCHES)
Outside Plant Products
Bourns offers full line Overvoltage Protectors based Discharge Tube (GDT) patented Multi-Stage Protection (MSP®) technology. Products include 5-Pin Protectors Central Office Building Entrance protection, well Station Protectors POTS splitters Network Interface Devices (NID) customer premises protection. 241x 242x series 5-Pin Protectors highly reliable cost effective solutions Central Office Building Entrance protection. offer wide variety color coded modules with custom configurations. Both series available with MSP® technology, offering long surge life, high surge handling capability capacitance broadband applications. Customer Premises, offer complete line fully modular Network Interface Devices available from hundred lines. NIDs available fire retardant, ultraviolet resistant plastic zinc coated, rust resistant metal housings. NIDs designed provide maximum wire management space flexibility available many custom configurations, including 1740 series protector addition 75-Ohm Coax cable protection. Additionally, offer full line Station Protectors, ADSL VDSL splitters with binding post terminations totally integrated protectorsubscriber bridge modules snap-in configuration. 23xx series Station Protectors offered with GDT, MSP® Solid State technology. 36xx series POTS splitters designed meet relevant ANSI specifications protector products accessories listed manufactured Telcordia technical requirements.
Residential Network Interface Devices
Commercial Multipair Network Interface Devices
Protector Terminals
Enclosures
Bourns® Products Continued
DigiGuardMSP® Broadband Protectors Balanced Capacitance (BC) versions available VDSL
Standard Station Protectors
5-Pin Broadband Protectors Splitters ADSL (left) VDSL (right)
Well Protectors
5-Pin Broadband Protectors
Outside Plant Signaling Systems Surge Protectors
Bourns® 1669 protectors designed protect field-mounted 4-20 transmitters. 1669 series features sealed stainless steel pipe easy connection field transmitter inch port. railmounted 1820-28-Ax typically used protect Digital Carrier System equipment opposite loop.
1669 Series Transient Protector Selection Guide
Max. Signal Voltage Clamping Voltage 2000 2000 Capacitance MHz, Max. (pF) 1200 (pF) Series Resistance Line Impulse Clamping Inductance (L+L)-G Line, Leakage Max. Max. 10/1000 V/µs (µH) (µA) 1000 Surge Life 8/20 (times) 10/100 (times)
Model
1669-01 1669-05 1669-02 1669-06
1669-06 Product Dimensions
3/4-14
1669-02 Product Dimensions
3/4-14 NPT, PLCS.
TYP. (11.81)
115.00 (4.53)
100.00 (3.94)
TYP. (11.81)
DIMENSIONS
MILLIMETERS (INCHES)
1800 Series Signal Dataline Protector Selection Guide
Interface Operating Characteristics Mounting Detail Typical App. Peak Signal Voltage 1810-10-xx 1820-10-xx RS-422 1811-10-xx 1821-10-xx 1810-15-xx 1820-15-xx 1811-15-xx 1821-15-xx 1810-28-xx 1820-28-xx 4-20 1811-28-xx 1821-28-xx 1810-50-xx 1820-50-xx 5000 RS-232 RS-485 2300 1800 1500 2300 1100 1800 Max. Data Rate (MHz) Protective Characteristics Peak Clamping Voltages rate rise rate rise Max. Current (mA) Typical Capacitance (pF) (pF) 1200 3300 2200 3300 Series Resistance Each Line
(input output)
(Ohms)
Surge Life: operations Amps, 1000 µsec operations µsec 1800 Series Signal/Data Attenuation Maximum Data Rate: with Termination Operating Temperature: 1669 Series +100 1800 Series
1820-28-A1 Product Dimensions
LINE EQPT
1820-28-A3 Product Dimensions
1.91 (48.51) E3/L3 GROUNDING LINK 3.28 (83.31)
(18.80)
.125 (3.18)
.093 (2.36) ALIGNMENT
.375 (9.53) 8-32UNF-2A (17.80)
DIMENSIONS
MILLIMETERS (INCHES)
FEED-THROUGH (E3/L3)
GROUNDING SCREW
MOUNTING/GROUNDING SCREW
1.14 (28.96) 1.93 (49.02)
DIN-1 RAIL (TS-32/EN50035)
1.79 (45.47)
DIN-3 RAIL (TS-35/EN50022)
Other Related Products Capabilities
Bourns offers wide range Transformers suitable Telecom, Ethernet applications. These devices available range surface mount through-hole packages well some profile devices PCMCIA applications. summary part numbers application below.
PT60001 10Base-T, 10Base-5, 10Base-2
PT60006 100Base-TX
PT60007 10Base-T/100Base-TX QUAD
PT60003 10Base-T/100Base-TX PCMCIA
PT60005 10Base-T/100Base-TX
PT60010 100Base-TX QUAD
PT60011 10-100Base-TX QUAD
RX38
TX35
RX28
TX25
PT61005 10Base-T Filter Interface
TRANSMIT PASS FILTER
PT60014 10Base-T/100Base-TX PCMCIA
RECEIVE
PASS FILTER
PASS FILTER
PASS FILTER RECIEVE
TRANSMIT
PT61007 10Base-T/100Base-TX QUAD
TCT1 TCT1
PT61003 10Base-T/100Base-TX High Speed
RD15 TCT2
TCT2
TCT3
TCT3
PT61010 10Base-T
RECEIVE
TCT4
TCT4
TRANSMIT
PT61004 10Base-T Filter Interface PT66001 ISDN S-Interface Transformer Module
2/2:1/1 core 2/2:1/1 VIII core 1:1:1:1
PASS FILTER TRANSMIT PASS FILTER
core
PASS FILTER
PASS FILTER RECIEVE
PT66002 Transformer
(CT)
PT66004 ISDN S-Interface Transformer
PT66005 T1/CEPT/ISDN-PRI Transformer
PT66003 T1/CEPT Transformer
PT534-1 (1:1) ADSL Line Transformer
Line Chip
SM76299 SHDSL Line Transformer
SM-LP-5001 Series Line Matching Transformer
SM535-1 ADSL Line Transformer
Chip 1.95 Line
Bourns® Microelectronic Modules Packaging Solutions
Device Mounting Technology
Surface Mount Technology Surface mounting still most common economical approach many applications. Bourns® Microelectronic Module products offer latest surface mount technology: Chip sizes 0201 Inert reflow SOIC, PLCC, TSOP, 0.012 (0.3 Lead free solder capability CSP, form components Passive component test BGA: pitch, underfill Chip Wire/COB (Chip Board) This proven technology provides intermediate level miniaturization, advantages in-process test repair designed withstand harsh environments such automotive applications. Bourns® Microelectronic Module products offer latest chip wire technology: Gold Aluminum Wire Bonding High speed, automated, ball/wedge, wedge/wedge, ribbon Gold Wire Bonding 20-50 (0.8 mil) wire mil) pitch Aluminum Wedge Bonding 125-380 mil) wire high current/power applications Attachment Epoxy Eutectic, accuracy, glob top, fill Flip Chip Mounting This process provides ultimate opportunity package miniaturization minimization conductor lengths size reduction high speed, high frequency applications. Bourns® Microelectronic Module products offer choice flip chip approaches: Anisotropic Adhesive Attachment (Z-axis conductive epoxy) Ideal flex circuits High Tight pitch Cost-effective flip chip solution Utilizes off-the-shelf wire bondable
Substrate Gold Bump Anisotropic Conductive Epoxy Conductive Particles
Thermal-Sonic Bonding (Gold-to-Gold Interconnect) Ideal high frequency applications MEMs ceramic substrates limited less Underfill optional temp process Lead free
Ceramic Substrate Gold Bump (stud bump) Underfill (optional)
Stud Bump bonding Ideal high flip chip ceramic substrate Mid-process replacement faulty chips Underfill required Proven technology with reliability data Utilizes off-the-shelf wire bondable
Ceramic Substrate Gold Bump (stud bump) Conductive Adhesive Underfill
Solder Mounting Standard flip chip technology Solder bumped devices Optional underfill Z-axis control ultimate strength High volume cost-effective solution
Substrate Gold Bump (stud bump) Conductive Adhesive Underfill (optional)
Full Process Stud Bump Bonding
Bumps
Press
Underfill Substrate
Substrate
Bump Formation
Leveling Height
Transfer Conductive Adhesive
Mounting Curing
Inspection
Sealing Curing
Choice Package Interconnects (Chip Scale Packaging) smallest package surface mounting (Multichip modules) smallest package multichip hybrid
Substrate
Substrate
Mini-DIL TO-cans Butterfly Hermetic Seal
(Single Inline Packaging) 0.050 0.100 (Dual Inline Packaging) 0.100 (Ball Grid Array) (Quad Flat Pack) J-Leads Dual Quad configuration 0.050 0.075 0.100
Bourns® Switch Power DC/DC Converters
Bourns Switch Power brought innovative product solutions ideas power conversion market since 1995. emphasis high performance converters given broad expanding selection power solutions. focus communications market gives advantage experience when developing high reliability products. technological innovation produced patents covering aspects DC-DC Converter development: from controller design through power train layout, resulting better performance, higher density higher reliability products.
Typical Applications Point Load DC/DC Converters:
voltage, high density systems with Intermediate Architectures (IBA) Workstations, servers, desktop computers Distributed power architectures Telecommunications equipment Latest generation (DSP, FPGA, ASIC) microprocessor-powered applications Data processing equipment Broadband, networking, optical communications systems
Non-Isolated Converters
Bourns® Switch Power's Non-Isolated Converters provide voltages needed support core logic, ASICs, microcontrollers microprocessors. These high-efficiency converters provide improved regulation superior dynamic response. many cases this thanks Bourns Switch Power's patented V2architecture. High power density both surface mount module packages ensure compatibility with most size requirements.
SLIC Power
SLIC Power series products provides highperformance power cost Ringing SLIC users. Rather than spending time designing testing specialized power circuits, designer simply select appropriate SLIC Power module. Whether comparing cost, space design time, SLIC Power modules meet exceed other options.
Input Voltages: Output Currents: Output Voltages:
Input Voltage
VBAT1/2 SPT5504C SPT5204Q SPT5504CL SPT5204QL SPT5504Q
Volt Power
M20W power module industrial temperature range, dual-output device. system designer obtains flexibility choosing components, based ability module supply either voltage over wide power range load. output voltages tightly independently regulated, thus eliminating common problem cross regulation errors between outputs. module designed with Switch Power's resonant primary synchronous secondary topology enhanced reliability high efficiency, allowing high-temperature operation.
Custom Power
Bourns design produce Custom Power solutions your specific application. standard fixed product available output voltages specified this catalog. Please contact application support more information.
Which Protection Technology Right Equipment?
There several individual technologies within each core protection types listed Table single protection technology offers ideal solution requirements. Each technology different strengths weaknesses, only understanding their relative merits protection optimized given installation. quick review Table demonstrates that single ideal solution exists locations within telephone network cascaded protection often deployed.
Protection Type Overcurrent Overvoltage Overcurrent Overvoltage Action Limit peak current Limit peak voltage Coordinate voltage current protection Connection Series parallel primary) Parallel Combination
Basics Overvoltage Overcurrent
Protection devices fall into types, overvoltage overcurrent. Overvoltage devices (see Figure divert surge current (such lightning), while most overcurrent devices (see Figures 2a-2c) increase resistance limit surge current flowing from longer duration surge currents (50/60 power fault). There types voltage limiting protectors: switching devices (GDT Thyristor) that crowbar line clamping devices (MOV TVS). inset waveforms Figure emphasize that switching devices results lower stress levels than clamping devices (shaded area) protected equipment during their operation. Functionally, voltage protectors reset after surge, while current protectors not, based their technology. example, thermistors resettable; fuses non-resettable shown Table
Table Protection falls into three basic types
Overvoltage
Speed Thyristor Fair Fair Fair Very fast Accuracy Fair Good Poor Good Current Rating Very high High High Very
Overvoltage limiting clamping switching
Source Impedance Surge Current Surge
Overvoltage Clamping Overvoltage Protection Threshold Voltage Switching Overvoltage Protection Source load voltages
Overcurrent
Speed Polymer Thermistor Ceramic Thyristor Fuse Heat Coil Thermal Switch Fair Slow Very slow Very slow Very slow Accuracy Good Good Fair Poor Poor Current Rating Medium/High High
Figure Overvoltage protection provides shunt path surges
Table Summary technology characteristics
Good protection design necessitates understanding performance trade-offs benefits each device type, well terminology used their specifications. Adequate grounding bonding, reduce potential differences provide impedance current path prerequisite coordinated system protection (GR-1089-CORE, Section
Protected Load
Overvoltage Protection
Overcurrent limiting interrupting
Source Impedance Surge Current Interrupting Overcurrent Protection
ENTER
Overvoltage
Action
Interrupting
Connection Shunt Shunt
Examples GDT, Thyristor MOV,
Voltage switching
Protected Load
Surge
Voltage clamping
Overcurrent
Overcurrent
Action
Connection Series Series Shunt series Series Across voltage limiter
Examples thermistor Ceramic Polymer Fuse Heat coil (Line Feed Resistor) Fail-short device thermal overload
Overcurrent limiting reducing
Source Impedance Surge Current Reducing Overcurrent Protection
REDUCED CURRENT AHEAD
Resettable Non-resettable
Reducing
Surge
Protected Load
Non-resettable Non-resettable Non-resettable
Overcurrent
Table basic classes protection devices
Overcurrent limiting diverting
Source Impedance Surge Current Diverting Overcurrent Protection Diverting
Surge
Protected Load
Overcurrent
Figure 2a-2c. Overcurrent protection isolates equipment presenting high impedance
shunt device failing open circuit effectively offers follow-on protection, although under normal conditions telephone line will operate. device fails short circuit, line service, further damage prevented. addition, other issues such exposed areas prone heavy surge events remote installations where maintenance access difficult strongly influence selection most suitable protection technology (see Table
What Happens After Surge Device Fails?
addition preventing surge from destroying equipment, resettable devices return equipment pre-event operation, eliminating maintenance cost maximizing communications service. addition, lightning typically consists multiple strikes. therefore, essential consider subsequent surges. Because lightning power cross standards intended represent maximum surge amplitudes field, understanding what happens under extreme conditions equally important.
Reliability Complying with standards does guarantee field reliability.
Overvoltage
Suitable Primary Secondary (S)1,2 Thermal Switch Thyristor Thyristor Thermal Switch Reset Normal Normal Operation After Operation After Excess Stress3 Still Protecting? Yes/No Line Operating? No/Yes
Overcurrent
Normal Operation After Operation Thermistor Fuse Heat Coil Thermal Switch
Speed Accuracy Major Control Factors Determining Equipment Stress Levels
After Excess Stress3 Still Protecting? Line Operating?
Reset Normal Line Disconnected Line Shorted Open Line Shorted Both Lines Disconnected
behavior each technology during fast surge events have substantial effect maximum stress summarized Table addition device tolerance, each device requires finite time operate, during which equipment still subjected unlimited surge waveform. Before operation, some technologies allow significant overshoot above `operating' level. worst-case effects determine stress seen equipment just nominal "protection" voltage current (see Figure Overvoltage protection technologies summarized follows: GDTs offer best power high surge current capability. high data rate systems (>30 Mbs), capacitance makes GDTs preferred choice. Thyristors provide better impulse protection, lower current. MOVs cost components. offers better performance dissipation applications.
Performance
Primary protection applications typically require specific fail-short protection. Secondary protection requires fused line (USA). failure mode depends extent excess stress. Comments made typical condition that does fuse leads.
Table status after protection operated significant maintenance/quality service issue
Overvoltage Limiters
Type Voltage Limiting Speed
Class
Technology Discharge Tube Thyristor Metal-Oxide Varistor
Voltage Precision
Impulse Current Capability
BEST
Capacitance
BEST
Clamping
Switching
BEST
BEST
Table overvoltage technology offers ideal solution applications
Overcurrent Limiters
Type
Class
Performance Fast Operation
BEST
Technology Polymer Thermistor Ceramic Thermistor Fuse Line Feed Resistor Heat Coil Thermal Switch
Resistance Stability
Operating Current
BEST
Series Resistance
Reducing
BEST
Interrupting
BEST
BEST
BEST
Diverting
BEST
BEST
BEST
Table overcurrent technology offers ideal solution applications
Overcurrent protection technologies summarized follows: thermistors provide self-resetting protection. Fuses provide good overload capability resistance. Heat coils protect against lower level `sneak currents'. LFRs provide most fundamental level protection, combined with precision resistance values needed balanced lines often combined with other devices.
Voltage impulse Device operating delay Voltage effect depends impulse rate rise Maximum Overshoot Voltage Maximum protection voltage Difference between typical impulse voltage
Typical protection voltage
Technology Selection Overvoltage Protectors
Voltage limiting devices reduce voltages that exceed protector threshold voltage level. basic types surge protective devices clamping switching, Figure Clamping type protectors have continuous voltage-current characteristic (MOV TVS), while voltage-current characteristic switching type protector discontinuous (GDT Thyristor). series shunt combination clamping switching type devices provide better solution than single technology. Utilize decision trees Figures election suitable circuit protection solution. Comparative performance indicators individual device descriptions beneath each decision tree allow designers evaluate relative merits each individual combination technologies. lower density increased exposure rural sites suggests that heavier surges expected these
Figure Systems must survive more than nominal protection voltage
applications (Figure while cost type protected equipment influence selection secondary protection (Figure
Reliability Check worst-case protection values, just nominal figures.
During operation overvoltage protectors, surge currents very high tracks system grounding regimes must properly dimensioned. important that protectors interfere with normal operation. Although traditional telecom systems typically battery voltage plus ringing voltage (i.e. approximately peak), designers should consider worst-case battery voltage, device temperature power induction
Uncontrolled environment?
Solution?
Thyristor
Hybrid?
CLAMP?
Hybrid?
CLAMP?
Thyristor
Thyristor Diode
Lower impulse voltage
Lower impulse voltage Lower capacitance Long impulse life
Lower capacitance
Lower capacitance Long impulse life
Lowest Impulse Voltage
Highest Intrinsic Impulse Capability
Note: overvoltage protector require addition overcurrent protection.
Figure Primary overvoltage technology selection
Reliability Ensure that tracks wiring dimensioned surge currents.
voltages when specifying minimum protection voltage. Some digital services operate much higher span voltages, requiring further consideration equipment designed broadband applications (see Table capacitance overvoltage protectors connected across these lines important especially digital connections such ISDN xDSL. Matched stable devices necessary avoid introducing imbalance system. What component type being protected? Passive
Figure
Passive
Resistor Solution? Protection Protection Smaller Lower cost Inductor Solution?
Component type?
Capacitor Solution?
Component Increased rating
Protection
Protection Smaller Lower cost
Component Increased rating
Thyristor
Thyristor
Inductive
Class?
Transformer Solution?
Active/ Semiconductor
Figure
Protection
Protection
Component Increased rating
Protection
Protection
Component Increased rating
Thyristor
Figure Secondary overvoltage protection depends type component protected
Thyristor
Note: overvoltage protector require addition overcurrent protection. Figure Secondary protection passive components
Datasheet When protecting digital lines, check tolerance variation protection capacitance (i.e. voltage dependance), just nominal values.
Discharge Tubes (GDTs)
GDTs apply short circuit under surge conditions, returning high impedance state after surge. These robust devices with negligible capacitance attractive protecting digital lines. GDTs able handle significant currents, their internal design significantly affect their operating life under large surges (see Figure
Active/ Semiconductor
SLIC Solution?
Component type? Xpoint Switch LCAS, Diode Bridge Thyristor Thyristor
Solution?
Thyristor
Hybrid
Capability Capability Capability sparkover voltage GDTs increases high rates voltage rise Protection level Protection level (dv/dt). level increase Xpoint Switch: Cross-point Switch Lower cost depends actual rate rise LCAS: Line Card Access Switch PSU: Power Supply Unit nominal sparkover SSR: Solid State Relay voltage. example V/µs, SLIC: Subscribe Line Interface Circuit impulse sparkover voltage increases Note: overvoltage protector require addition approx. impulse sparkover overcurrent protection, such LFM, thermistor fuse. increases approximately
Figure Secondary protection active components
Their ability handle very high surge currents hundreds microseconds high many seconds matches primary protection needs exposed remote sites. During prolonged events, GDTs develop very high temperatures, should combined with thermal overload switch that mechanically shorts line (SwitchGrade Fail-Short mechanism).
Bourns® Products Discharge Tubes Bourns offers subminiature 3-electrode Mini-TRIGARD® 2-electrode Mini-GDT. Combining small size with industry's best impulse life, these products ideal high-density primary applications.
Current
Clamping Datasheet GDTs available with Switch-Grade Fail-Short Device.
Switching
Thyristor
Thyristor Voltage
Standards Recognized GDTs available, requiring BUG.
Figure Overvoltage protectors feature very different characteristics
Sparkover Voltage
Sparkover Voltage Variation over Impulse Life (350 GDTs)
Bourns Supplier Supplier Supplier Supplier
Number 10/1000 impulses
Figure behavior deteriorate under real-world field conditions
Certain GDTs suffer Surge Power Current Cross from venting loss. ensure protection Several Several amps under these circumfor seconds stances, Back (BUG) been used. BUGs themselves subject moisture ingress contamination, reducing their operating voltage, leading nuisance tripping. BUGs also more sensitive fast rising voltage surges, causing operate instead GDT. Bourns® GDTs approved without need BUG, eliminating extra cost improving reliability (see Figure 10).
dv/dt Sensitivity Poor
di/dt Sensitivity None
Typical Application Primary secondary protection Exposed sites Sensitive equipment needs additional secondary protection Particularly suited high speed digital lines
protection capabilities
Thyristor-Based Devices
Thyristor-based devices initially clamp line voltage, then switch low-voltage "On" state. After surge, when current drops below "holding current," protector returns original high impedance state. main benefits thyristor protectors lower voltage overshoot ability handle moderate currents without wear-out mechanism. disadvantages thyristor protectors higher capacitance, which limitation high-speed digital applications, less tolerance excessive current. Thyristor protectors either secondary protection conjunction with GDTs, primary protection more controlled environments/ lower surge amplitudes. protection both voltage polarities, either power diode second thyristor integrated
Selected
Recognized
Reliability
GDTs approved UL497 optional test program without back-up device longer required Figure Traditional venting required back-up protection
inverse parallel, creating Surge Power Current Cross versatile protection functions that Several Several amps used singly various seconds combinations. clamping voltage level fixed voltage thyristors during manufacturing process. Gated thyristors have their protective level voltage applied gate terminal.
dv/dt Sensitivity Good
di/dt Sensitivity Poor
Typical Application Primary secondary protection Urban some exposed sites protect sensitive equipment
Thyristor protection capabilities
Bourns® Products TISP® Thyristor Surge Protectors TISP® family thyristor-based devices includes extensive range single multiple configurations unidirectional bidirectional formats, with fixed gated operation. Transient Voltage Suppressors
Transient Voltage Suppressor (TVS) diodes sometimes called Zeners, Avalanche Breakdown Diodes, operate rapidly moving from high impedance non-linear resistance characteristic that clamps surge voltages. diodes provide fast-acting well-controlled clamping voltage which much more precise than MOV, they exhibit high capacitance energy capability, restricting maximum surge current. Typically used power applications, their wellcontrolled voltage clamp enables selection protection voltages closer system voltage, providing tighter protection.
Surge Current Power Cross Poor dv/dt Sensitivity None Typical Application Secondary protection protect sensitive equipment
protection capabilities
Metal Oxide Varistors (MOVs)
Metal Oxide Varistor (variable resistor) voltage dependent resistor whose current predominantly increases exponentially with increasing voltage. clamping surges, absorbs substantial amount surge energy. With high thermal capacity, MOVs have high energy current capability relatively small size. MOVs
Datasheet When selecting operating voltage, remember that residual voltage increases considerably higher current.
extremely fast cost, have high capacitance, high, current-dependant clamping voltage, susceptible wear. Typical applications include general-purpose protection low-cost analog telecom equipment such basic telephones. When combined with GDT, speed enables clamp initial overshoot while begins operate. Once fires, limits energy MOV, reducing size required. Devices available which integrate single package simplify assembly save space.
Surge Current
Power Cross
dv/dt Sensitivity Good
Typical Application Secondary protection protect non-sensitive equipment
Several Dissipation limited
protection capabilities
Overcurrent
Sneak current protection needed?
Thyristor Solution? Mechanical compression Lower cost High current impulse
Primary overvoltage technology?
Solution?
with ADSL?
Resettable
thermistor type?
Solder melt
Mechanical switch*
Solder melt
Insulation melt
Heat coil Polymer Ceramic Lower signal loss Better line balance
Figure Sneak current technology selection
Straightthrough
Lower resistance Lower fire risk Lower cost
*Switch-Grade Fail-Short Note: Protection against sneak currents requires additional components Figure Selection fail-short technology Primary overvoltage protection
Technology Selection Overcurrent Protectors
Current limiting devices (See Figures provide slow response, primarily aimed protection from surges lasting hundreds milliseconds more, including power induction contact with power. combining fixed resistor series with resettable protector, optimum balance nominal resistance operating time obtained. inherent resistance certain overcurrent protectors also useful coordination between primary secondary overvoltage protection.
time issue preserving line balance. PTCs commonly referred resettable fuses, since low-level current faults very common, automatically resettable protection
Reliability stability thermistor resistance after operation critical line balance.
particularly important. There types thermistors based different underlying materials: Polymer Ceramic. Generally device crosssectional area determines surge current capability, device thickness determines surge voltage capability. Polymer devices typically have lowe
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