IRF4905 – P-Channel Power MOSFET

Overview

IRF4905 – P-Channel Power MOSFET

Product Overview:

The IRF4905 is a P-Channel MOSFET designed for high-current switching applications. With its low on-resistance and high power dissipation, it is widely used in DC-DC converters, battery management systems, motor controllers, and industrial power supplies.

Key Specifications:

• Type: P-Channel MOSFET
• Drain-Source Voltage (Vds): -55V
• Continuous Drain Current (Id): -74A (at 25°C)
• Gate-Source Voltage (Vgs): ±20V
• Drain-Source On-Resistance (Rds On): 0.02Ω (at -10V Vgs)
• Total Gate Charge (Qg): 140nC
• Power Dissipation (Pd): 200W
• Operating Temperature Range: -55°C to 175°C
• Package Type: TO-220 / TO-263 (D2PAK)

Applications:

✔ High-Current Load Switching – Suitable for power distribution and battery circuits.
✔ Motor Control & Drivers – Ideal for automotive applications, motor drivers, and solenoid control.
✔ DC-DC Power Converters – Used in voltage regulation and inverters.
✔ UPS & Solar Power Systems – For energy-efficient power management.

Features & Benefits:

✔ Ultra-Low Rds(on) (0.02Ω) – Improves efficiency and reduces heat dissipation.
✔ High Current Handling (-74A) – Ideal for heavy-duty applications.
✔ Fast Switching Speed – Enhances circuit performance and power efficiency.
✔ Robust TO-220 / TO-263 Package – Ensures high thermal efficiency.

Equivalent & Alternative Parts:

• IRF9540 – Lower current rating but similar voltage specs (-100V, -23A).
• STP75PF75 – Higher power rating and enhanced thermal management.