This post explains for the MOSFET.

The Part Number is 85T03GH, AP85T03GH.

The function of this semiconductor is 30V, 75A, MOSFET.

The package is TO-252, TO-251 Type

Manufacturer: APE ( Advanced Power Electronics Corp )

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Description

85T03GH is 30V, 75A, N-Channel Power MOSFET. The TO-252 package is widely preferred for all commercial-industrial surface mount applications and suited for low voltage applications such as DC/DC converters. The through-hole version (AP85T03GJ) is available for low-profile applications.

Featues :

1. Low Gate Charge

2.Simple Drive Requirement

3. Fast Switching

85T03GH PDF Datasheet

This post explains for the MOSFET.

The Part Number is 04N70BF-H.

The function of this semiconductor is 700V, 4A, N-Channel MOSFET.

Manufacturer: Advanced Power Electronics

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Description

04N70BF-H series are specially designed as main switching devices for universal 90~265VAC off-line AC/DC converter applications. TO-220FM type provide high blocking voltage to overcome voltage surge and sag in the toughest power system with the best combination of fast switching,ruggedized design and cost-effectiveness.

The TO-220FM package is universally preferred for all commercialindustrial applications. The device is suited for switch mode power supplies ,DC-AC converters and high current high speed switching circuits.

Features

1. Dynamic dv/dt Rating

2. Repetitive Avalanche Rated

3. Fast Switching

4. Simple Drive Requirement

5. RoHS Compliant

Absolute Maximum Ratings (Ta = 25°C)

1. Drain to source voltage: VDSS = 650 V

2. Gate to source voltage: VGSS = ± 30 V

3. Drain current: ID = 4 A

4. Total Power Dissipation: Pd = 33 W

5. Avalanche energy: Ear = 4 mJ

6. Channel temperature : Tch = 150 °C

7. Storage temperature : Tstg = -55 to +150 °C

04N70BF-H PDF Datasheet