IRF4905 P-Channel Power 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 0.02Ω, 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.

• 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 0.02Ω
• 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

• 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 0.02Ω

• 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

• 3D Model
• Datasheet

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