The FR120N MOSFET Control Module is a solid-state switching module designed to control DC loads such as LED strips, motors, solenoids, pumps, heating elements, and DC lamps. It acts as an electronic replacement for traditional mechanical relays.

Yes, for DC loads only.
This module works as a solid-state relay (SSR) replacement and offers:

• Faster switching

• No mechanical wear

• Silent operation

• Longer lifespan

• No spark generation

⚠️ Note: It is not suitable for AC loads.

The FR120N MOSFET module typically supports:

• DC Voltage: Up to 30–60V (depending on design)

• High current switching (commonly up to 10–15A with proper heat dissipation)

For continuous high-current use, proper heat sinking is recommended.

The module can be driven directly by:

• 3.3V logic (ESP32, ESP8266)

• 5V logic (Arduino, STM32, Raspberry Pi GPIO)

This makes it ideal for microcontroller-based automation projects.

Compared to a mechanical relay, this module provides:

• Silent switching

• Faster response time

• Lower power consumption

• No contact arcing

• Higher switching life cycle

• Better efficiency for PWM applications

It is especially useful in embedded and IoT systems.

Common applications include:

• LED dimming (PWM compatible)

• DC motor speed control

• Battery-powered systems

• Solar projects

• ESP32 / Arduino automation

• Smart home DC switching

• Robotics projects