View 2sd1277 2sd1277a datasheet:

Inchange Semiconductor Product Specification Silicon NPN Power Transistors 2SD1277 2SD1277A DESCRIPTION With TO-220Fa package Complement to type 2SB951/951A High DC current gain High-speed switching APPLICATIONS For medium speed power switching PINNING PIN DESCRIPTION1 Base 2 CollectorFig.1 simplified outline (TO-220Fa) and symbol3 EmitterAbsolute maximum ratings (Ta=25) SYMBOL PARAMETER CONDITIONS VALUE UNIT2SD1277 60VCBO Collector-base voltage Open emitter V 2SD1277A 80 2SD1277 60VCEO Collector-emitter voltage Open base V 2SD1277A 80 VEBO Emitter-base voltage Open collector 7 V IC Collector current (DC) 8 A ICM Collector current-Peak 12 ATC=25 45 PC Collector power dissipation W Ta=25 2 Junction temperature 150 Tj Tstg Storage temperature -55~150 INCHANGE SEMICONDUCTORIncha

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