IR4905 P-Channel Power MOSFET – 55V 74A TO-220

The IR4905 is a high-current P-channel power MOSFET designed for low-voltage, high-side switching applications. It supports a drain-source voltage of −55V and a continuous drain current of up to −74A, making it suitable for power distribution, battery management, and motor control systems. With a low on-resistance of approximately 0.02Ω, it minimizes conduction losses and improves efficiency in DC power circuits. Its fast switching performance and rugged avalanche capability make it ideal for high-current power control applications.

• P-channel power MOSFET structure
• High-side switching capability
• Drain-source voltage up to −55V
• Continuous drain current up to −74A
• Low RDS(on) of approximately 0.02Ω
• Fast switching characteristics
• Reduced conduction losses
• Suitable for battery-powered systems
• Avalanche rated for rugged operation
• TO-220 package for effective heatsinking
• Ideal for motor and load switching
• Efficient power management performance
• Reliable for automotive and industrial applications
• Easy PCB mounting with through-hole package

• Model: IR4905
• 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