FR120N MOSFET Control Module – Optocoupler Isolated High-Speed Switching Relay Replacement

The FR120N MOSFET Control Module is a reliable solid-state relay replacement designed for high-speed switching in electronic projects. This module uses an FR120N power MOSFET in conjunction with optocoupler isolation, ensuring safe and interference-resistant operation. It’s ideal for controlling DC loads such as motors, solenoids, and lighting systems with enhanced durability and responsiveness compared to mechanical relays.

Thanks to its optocoupler isolation design, the control signal is electrically separated from the load power side, preventing back current and improving system safety. This makes it particularly suitable for use with PWM signals for motor speed control or LED dimming. Easy to integrate with microcontrollers like Arduino, ESP32, or Raspberry Pi, this compact and cost-effective module is a must-have for automation and robotics applications.

🔧 Key Features

• High-performance FR120N MOSFET Control Module for DC load switching
• Optocoupler isolation improves signal integrity and protection
• Supports PWM control for motor speed regulation
• Can replace mechanical relays for faster, silent operation
• Dual output interface: screw terminal and pin header
• Works with Arduino, ESP32, STM32, and Raspberry Pi

📐 Technical Specifications

📌 Applications

• DC Motor control with PWM signals
• LED dimming systems
• DIY automation and IoT projects
• Smart home device switching
• Robotics and embedded electronics

💡 Why Choose This Module?

The FR120N MOSFET Control Module provides fast switching, excellent isolation, and enhanced durability over traditional relays. It’s perfect for both beginner and advanced electronics projects where reliability and protection matter.

📦 Package Includes

• 1 × FR120N MOSFET Control Module