IRF4905 P-Channel MOSFET – 55V 74A TO-220

The IRF4905 is a high-performance P-channel power MOSFET designed for high-current, low-voltage switching applications. It supports a drain-source voltage of ?55V and continuous drain current up to ?74A, making it ideal for high-side switching in DC power systems. With an ultra-low on-resistance of approximately 0.02?, the IRF4905 minimizes conduction losses and improves efficiency in power distribution and control circuits. Its fast switching capability, rugged avalanche performance, and TO-220 package make it suitable for motor control, battery management, power supplies, and load switching applications.

Features

- P-channel power MOSFET structure

- High-side switching capability

- Drain-source voltage up to ?55V

- Continuous drain current up to ?74A

- Ultra-low RDS(on) of approximately 0.02?

- Fast switching performance

- Low conduction losses for efficient power control

- Suitable for battery-powered systems

- Avalanche rated for rugged operation

- TO-220 package for effective heatsinking

- Ideal for DC load switching

- Supports power management circuits

- Reliable for automotive and industrial applications

- Easy integration into power electronics

Specifications

Model: IRF4905

Device Type: Power MOSFET

Channel Type: P-Channel

Drain-Source Voltage (VDS): -55V

Continuous Drain Current (ID): -74A

Gate-Source Voltage (VGS): ±20V

Drain-Source On-Resistance (RDS(on)): Approximately 0.02?

Total Gate Charge (Qg): Approximately 170nC

Power Dissipation: Approximately 200W

Package Type: TO-220

Mounting Type: Through-Hole

Avalanche Rated: Yes

Operating Temperature Range: -55°C to +175°C

Application Type: High-Side Power Switching

Links

- 3D Model

- Datasheet

Tutorials

[SGeC] IRF4905 High Power & Current P-Channel MOSFET 55V-74A-200W