FR120N MOSFET Control Module Relay Replacement | High Power MOSFET Trigger Switch Board 3V-5V PWM Control

FR120N MOSFET Control Module Relay Replacement | High Power MOSFET Trigger Switch Board 3V-5V PWM Control 

The FR120N MOSFET Control Module Replacement Relay is a high-efficiency electronic switching board used instead of traditional relay modules. It uses an FR120N power MOSFET to provide fast switching speed, low power loss, and long life, making it ideal for DC load control applications.

This module supports 3V or 5V control signals, so it can be directly connected to Arduino, Raspberry Pi, ESP32, PLC, and other microcontrollers. The built-in optocoupler isolation separates the control circuit from the load circuit, improving stability and protecting sensitive electronics from voltage spikes and interference.

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Features

• Model: FR120N MOSFET module
• Control signal: 3V / 5V compatible
• MOSFET rating: up to 100V / 9.4A
• Supports PWM control
• Optocoupler isolation for safety
• Fast and silent switching
• Small PCB size
• Easy wiring connection
• Long life compared to relay

Applications

• Motor speed control
• LED dimming control
• Battery switching circuit
• Arduino / ESP32 / IoT projects
• Robotics projects
• Solenoid valve control
• DC load switching
• DIY electronics projects