View 2sc4430 datasheet:

Ordering number:EN2853 NPN Triple Diffused Planar Silicon Transistor 2SC4430 800V/12A Switching Regulator Applications Features Package Dimensions � High breakdown voltage, high reliability. unit:mm � Fast switching speed (tf : 0.1� s typ). 2039D � Wide ASO. [2SC4430] � Adoption of MBIT process. 16.0 5.6 3.4 � Micaless package facilitating easy mounting. 3.1 2.8 2.0 2.0 1.0 0.6 1 : Base 1 2 3 2 : Collector 3 : Emitter 5.45 5.45 SANYO : TO-3PML Specifications Absolute Maximum Ratings at Ta = 25?C Parameter Symbol Conditions Ratings Unit Collector-to-Base Voltage VCBO 1100 V Collector-to-Emitter Voltage VCEO 800 V Emitter-to-Base Voltage VEBO 7 V Collector Current IC 12 A Collector Current (Pulse) ICP PW? 300� s, duty cycle? 10% 30 A Base Current IB 6 A