Part Number : C4458
Function : NPN Transistor (500V, 7A)
Package : TO-3PML Type
Maker : SANYO , Panasonic
Pinouts : 
Description :
NPN Triple Diffused Planar Silicon Transistor
Features :
1. High breakdown voltage, high reliability.
2. Fast switching speed.
3. Wide ASO.
4. Adoption of MBIT process.
5. Micaless package facilitating mounting.
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage : Vcbo = 800 V
2. Collector to Emitter Voltage : Vceo = 500 V
3. Emitter to Base Voltage : Vebo = 7 V
4. Collector Current : Ic = 7 A
5. Total Dissipation : Pc = 3 W
6. Junction Temperature : Tj = 150°C
7. Storage Temperatue : Tsg = -55 ~ +150°C
Applications
* Switching Regulator
Datasheet PDF Download : 
Others datasheet of same file : 2SC4458