First line: 4n80 equivalent transistor 4n80 NCP1237A AND8454/D Universal Input AC-DC Printer Adapter using NCP1237 Prepared NicolasAbstract: .. AND8454/D. 32 W, 32 V Universal Input AC-DC Printer Adapter using the NCP1237. Prepared by: Nicolas Cyr ON Semiconductor. Introduction This ac adapter demonstration board targets a printer adapter .. Tags: NCP1237Aequivalent transistor 4n804n80AND8454 D NCP1237