2sc1212 2sc1212a.pdf datasheet:

Inchange Semiconductor Product Specification Silicon NPN Power Transistors 2SC1212 2SC1212A DESCRIPTION With TO-126 package Complement to type 2SA743/743A APPLICATIONS For low frequency power amplifier applications PINNING PIN DESCRIPTION1 Emitter Collector;connected to 2 mounting base 3 BaseAbsolute maximum ratings(Ta=25) SYMBOL PARAMETER CONDITIONS VALUE UNIT2SC1212 50VCBO Collector-base voltage Open emitter V 2SC1212A 80 2SC1212 50VCEO Collector- emitter voltage Open base V 2SC1212A 80 VEBO Emitter-base voltage Open collector 4 V IC Collector current 1 ATa=25 0.75 PD Total power dissipation W TC=25 8 Tj Junction temperature 150 Tstg Storage temperature -55+150 INCHANGE SEMICONDUCTORInchange Semiconductor Product Specification Silicon NPN Power Transistors 2SC1212 2SC1212A