IRF9540N Mosfet Transistor (SH) TO-220 (Class-A) (Red) Code: 94697322

The IRF9540N is a widely used P-channel power MOSFET, primarily chosen for high-efficiency switching, load control, and power management circuits.

Core Specifications

• Transistor Type: P-Channel Power MOSFET
• Drain-Source Voltage : -100 V
• Continuous Drain Current : Up to -23 A
• On-State Resistance : 0.117 Ω (maximum)
• Gate Threshold Voltage : -2 V to -4 V
• Power Dissipation : 140 W to 150 W
• Operating Temperature Range: -55° C to +175° C
• Package: TO-220

Key Features

• Logic-Level Compatibility: Thanks to its negative gate threshold voltage, it can be driven directly by microcontrollers like Arduino.
• Low Conduction Losses: The low on-state resistance prevents excessive heat generation during operation.
• Fast Switching: Highly efficient in high-speed switching circuits, making it ideal for DC-DC converters and PWM (Pulse Width Modulation) applications.
• Rugged Design: Fully avalanche rated to handle transient loads and protect against voltage spikes.

Common Applications

• Motor Drivers: Frequently used in H-bridge circuits to control the direction and speed of DC motors.
• High-Power LED Dimming: Excellent for modulating high-current LED strings.
• Load Switching: Useful as a high-side switch (connecting a load to the positive supply line) in power management systems