View 2sc4612 datasheet:

Ordering number:EN3582 PNP/NPN Epitaxial Planar Silicon Transistors 2SA1768/2SC4612 High-Voltage Switching Applications Applicaitons Package Dimensions · Color TV sound output, converter, inverter. unit:mm 2064 Features [2SA1768/2SC4612] · Adoption of MBIT process. · High breakdown voltage, large current capacity. · Fast switching speed. E : Emitter C : Collector B : Base ( ) : 2SA1768 SANYO : NMP Specifications Absolute Maximum Ratings at Ta = 25?C Parameter Symbol Conditions Ratings Unit Collector-to-Base Voltage VCBO (–)180 V Collector-to-Emitter Voltage VCEO (–)160 V Emitter-to-Base Voltage VEBO (–)6 V Collector Current IC (–)0.7 mA Collector Current (Pulse) ICP (–)1.5 mA Collector Dissipation PC 1 W Junction Temperature Tj 150 ?C Storage Temperature Tstg