This post explains for the MOSFET.
The Part Number is IRFP460.
The function of this semiconductor is Power MOSFET.
The package is TO-3P.
Manufacturer: Fairchild Semiconductor
Preview images :
This is 500V, 22A, Power MOSFET.
1. Avalanche Rugged Technology
2. Rugged Gate Oxide Technology
3. Lower Input Capacitance
4. Improved Gate Charge
5. Extended Safe Operating Area
6. Lower Leakage Current: 10µA (Max.) @ VDS = 500V
7. Lower RDS(ON): 0.197Ω (Typ.)
Absolute Maximum Ratings (Ta = 25°C)
1. Drain to source voltage: VDSS = 500 V
2. Gate to source voltage: VGSS = ± 30 V
3. Drain current: ID = 22 A (Tc = 25°C)
4. Total Power Dissipation: Pd = 278 W
5. Channel temperature: Tch = 150 °C
6. Storage temperature: Tstg = -55 to +150 °C