Part Number: C4977, 2SC4977
Function: Switching Transistor, NPN Transistor
Package: TO-220F15 Type
Manufacturer: Fuji Electric
This is 400V, 7A, 40W, Silicon NPN Transistor.
1. Fast Switching Speed
2. Collector-Emitter Sustaining Voltage: Vceo(sus) = 400V(Min)
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage: Vcbo = 450 V
2. Collector to Emitter Voltage: Vceo = 400 V
3. Emitter to Base Voltage: Vebo = 8 V
4. Collector Current: Ic = 7 A
5. Collector Dissipation : Pc = 40 w
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -55 ~ +150°C
Designed for use in high-voltage, high-speed , power switching in inductive circuit , they are particularly suited for 115 and 220V switchmode applications such as switching regulator’s, inverters, DC-DC converter.