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

Manufacturer: MagnaChip

Preview images :

Description

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.

Features

1. VDS = 500V

2. ID = 4.5A

3. RDS(ON) ≤ 1.55Ω @VGS = 10V @VGS = 10V

Applications:

1. Power Supply

2. PFC

3. Ballast

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

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MDF5N50F PDF Datasheet

Part Number: MXP4004BTS

Function: 40V, 170A, N-Channel MOSFET

Package: TO-220 Type

Manufacturer: MaxPower Semiconductor

Images:

Description

MXP4004BTS is 40V, 170A, N-Channel MOSFET.

Features

1. Lead Free

2. Low RDS(ON) to Minimize Conductive Loss

3. Low Gate Charge for Fast Switching Application

4. Optimized V(BR)DSS Ruggedness

Absolute Maximum Ratings (Ta = 25°C)

1. Drain to source voltage: VDSS = 40 V

2. Gate to source voltage: VGSS = ± 20 V

3. Drain current: ID = 170 A

4. Total Power Dissipation: Pd = 231 W

5. Channel temperature: Tch = 150 °C

6. Storage temperature: Tstg = -55 to +175 °C

Applications:

1. Power Supply

2. DC-DC Converters

3. DC-AC Inverters

MXP4004BTS PDF Datasheet