View 2sc4493 datasheet:

Ordering number:EN3099 NPN Triple Diffused Planar Silicon Transistor 2SC4493 High-Voltage Amplifier, High-Voltage Switching Applications Features Package Dimensions · High breakdown voltage. unit:mm · Small Cob. 2049C · High reliability (Adoption of HVP process). [2SC4493] · Intended for high-density mounting (Suitable for sets 10.2 4.5 1.3 whose height is restricted). 1.2 0.8 0.4 1 2 3 1 : Base 2 : Collector 3 : Emitter 2.55 2.55 SANYO : TO-220MF Specifications Absolute Maximum Ratings at Ta = 25?C Parameter Symbol Conditions Ratings Unit Collector-to-Base Voltage VCBO 800 V Collector-to-Emitter Voltage VCEO 800 V Emitter-to-Base Voltage VEBO 7 V Collector Current IC 20 mA Collector Current (Pulse) ICP 60 mA Collector Dissipation PC 1.65 W Junction T