This post explains for the MOSFET.
The Part Number is 2SK2333.
The function of this semiconductor is 700V, 6A, N-Channel MOSFET.
The package is FTO-220 Type
Preview images :
This is 700V, 6A, N-Channel Enhancement type Power MOSFET.
1. Input capacitance (Ciss) is small. Especially, input capacitance at 0 biass is small.
2. The static Rds(on) is small.
3. The switching time is fast.
4. Avalanche resistance guaranteed.
Absolute Maximum Ratings (Tc = 25°C)
1. Drain to source voltage: VDSS = 700 V
2. Gate to source voltage: VGSS = ± 30 V
3. Drain current: ID = 6 A
4. Total Power Dissipation : Pt = 50 W
5. Channel temperature: Tch = 150 °C
6. Storage temperature: Tstg = -55 to +150 °C
1. Switching power supply of AC 240V input
2. High voltage power supply