This post explains for the MOSFET.
The Part Number is K4097, 2SK4097.
The function of this transistor is N-Channel MOSFET.
The package is TO-220FI(LS) Type
Manufacturer: Sanyo Semicon Device
Preview images :
Description
The K4097 is 500V, 9.5A, N-Channel Silicon MOSFET.
An N-channel MOSFET (Metal Oxide Semiconductor Field Effect Transistor) is a type of field effect transistor (FET) that uses an N-type semiconductor material as the conducting channel to control the flow of current.
When a positive voltage is applied to the gate terminal, it attracts electrons to the channel, creating an inversion layer and allowing current to flow between the source and drain terminals.
N-channel MOSFETs are widely used in a variety of electronic applications due to their high input impedance, fast switching speeds, and low power consumption. They are commonly used as switches, amplifiers, and voltage regulators.
Features
• Low ON-resistance, low input capacitance, ultrahigh-speed switching.
• Adoption of high reliability HVP process.
• Attachment workability is good by Mica-less package.
• Avalanche resistance guarantee.
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 = 9.5 A
4. Allowable Power Dissipation: Pd = 2 W
5. Channel temperature: Tch = 150 °C
6. Storage temperature: Tstg = -55 to +150 °C
Applications:
1. General-Purpose Switching Device