This post explains for the MOSFET.
The Part Number is MDF5N50F.
The function of this semiconductor is 500V, 4.5A, N-Channel MOSFET.
The package : TO-220, TO-220F Type
Preview images :
The MDP5N50F, MDF5N50F use advanced Magnachip’s MOSFET Technology, which provides low on-state resistance, high switching performance and excellent quality. MDP5N50F/MDF5N50F are suitable device for SMPS, HID and general purpose applications.
1. VDS = 500V
2. ID = 4.5A
3. RDS(ON) ≤ 1.55Ω @VGS = 10V @VGS = 10V
1. Power Supply
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 = 4.5 A
4. Allowable Power Dissipation: Pd = 93 W
5. Channel temperature: Tch = 150 °C
6. Storage temperature: Tstg = -55 to +150 °C