---
product_id: 486135465
title: "5PCS FR120N MOS Module MOSFET Control Module Field Effect Module Isolation MOSFET/MOS Tube FET Module Replacement Relay"
brand: "haljia"
price: "R321"
currency: ZAR
in_stock: true
category: "Haljia"
url: https://www.desertcart.co.za/products/486135465-5pcs-fr120n-mos-module-mosfet-control-module-field-effect-module
store_origin: ZA
region: South Africa
---

# 100V max voltage 9.4A high current rating Optocoupler isolation for interference-free control 5PCS FR120N MOS Module MOSFET Control Module Field Effect Module Isolation MOSFET/MOS Tube FET Module Replacement Relay

**Brand:** haljia
**Price:** R321
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your control game with interference-proof power precision!

## Quick Answers

- **What is this?** 5PCS FR120N MOS Module MOSFET Control Module Field Effect Module Isolation MOSFET/MOS Tube FET Module Replacement Relay by haljia
- **How much does it cost?** R321 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/486135465-5pcs-fr120n-mos-module-mosfet-control-module-field-effect-module)

## Best For

- haljia enthusiasts

## Why This Product

- Trusted haljia brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Flexible Installation:** Solderable terminals and breadboard-friendly input for versatile setups
- • **Dynamic PWM Speed Control:** Supports high-level start, low-level stop, and PWM for precise motor and valve control
- • **Plug & Play Compatibility:** Works seamlessly with 3V or 5V microcontrollers and control boards
- • **Powerhouse Precision Control:** Handles up to 100V and 9.4A for robust device management
- • **Interference-Free Signal Isolation:** Optocoupler isolation ensures clean, noise-free operation

## Overview

The 5PCS FR120N MOSFET Control Modules deliver reliable high-voltage (100V) and high-current (9.4A) switching with optocoupler isolation to eliminate signal interference. Designed for seamless integration with microcontrollers (3V/5V), these compact modules support PWM speed control and flexible soldering options, making them ideal for managing engines, solenoid valves, and other automated equipment.

## Description

Feature: With optocoupler isolation, the control signal is isolated from the power supply of the controlled device, which greatly improves the interference. Compatible with single chip and control board, 3 V or 5 V signal. High level start, low level stop, PWM speed. Widely used to control engine start and stop, solenoid valve and other tributary equipment. The signal input end can solder the terminal block or pin, compatible with breadboard. The output end can be soldered terminals or directly soldered wires. Specification: Module: FR120N Voltage:100V 9.4A Size: 33.5 × 16.5 × 5 mm Hole Diameter: 2 mm Weight：5 g Packing List: 5 x FR120N Module

## Features

- Module: FR120N; Voltage: 100V 9.4A
- With optocoupler isolation, the control signal is isolated from the power supply of the controlled device, which greatly improves the interference.
- Compatible with single chip and control board, 3 V or 5 V signal.
- High level start, low level stop, PWM speed. Widely used to control engine start and stop, solenoid valve and other tributary equipment.
- The signal input end can solder the terminal block or pin, compatible with breadboard. The output end can be soldered terminals or directly soldered wires.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B092ZKKGPT |
| Best Sellers Rank | 70,445 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 63 in MOSFET Transistors |
| Brand | HALJIA |
| Coil Voltage | 100 Volts |
| Connector Type | Solder |
| Connector type | Solder |
| Contact Current Rating | 9.4 Amps |
| Contact Material | Copper Alloy |
| Contact Type | Normally Open |
| Contact material | Copper Alloy |
| Contact type | Normally Open |
| Country Of Origin | China |
| Current Rating | 9.4 Amps |
| Current rating | 9.4 Amps |
| Customer Reviews | 5.0 out of 5 stars 2 Reviews |
| Manufacturer | HALJIA |
| Maximum Switching Voltage | 100 Volts |
| Minimum Switching Voltage | 100 Volts |
| Mounting Type | PCB Mount |
| Mounting type | PCB Mount |
| Number of Terminals | 2 |
| Operation Mode | Automatic |
| UPC | 753594160048 |
| Wattage | 940 watts |

## Product Details

- **Connector type:** Solder
- **Contact material:** Copper Alloy
- **Contact type:** Normally Open
- **Current rating:** 9.4 Amps
- **Mounting type:** PCB Mount

## Images

![5PCS FR120N MOS Module MOSFET Control Module Field Effect Module Isolation MOSFET/MOS Tube FET Module Replacement Relay - Image 1](https://m.media-amazon.com/images/I/71qwaMElCgS.jpg)

## Frequently Bought Together

- HALJIA 5PCS FR120N MOS Module MOSFET Control Module Field Effect Module Isolation MOSFET/MOS Tube FET Module Replacement Relay
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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-11*