This post explains for the transistor.
The Part Number is 2SC2625.
The function of this semiconductor is NPN Transistor.
The package is TO-247(3P) type
Manufacturers : Mospec Semiconductor
This is 400V, 10A, NPN Transistor.
The C2625 designed for use in high-voltage, high-speed, power switching in inductive circuit, and switchmode applications such as switching regulator, converters. […]
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 = 7 V
4. Collector Current : Ic = 10 A
5. Total Dissipation : Pc = 80 W
6. Junction Temperature : Tj = 150°C
7. Storage Temperature : Tsg = -55 ~ +150°C