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FR120N/LR7843/AOD4184 Isolation MOSFET Module Replacement Relay
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REL-01-052
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FR120N/LR7843/AOD4184 Isolation MOSFET Module Replacement Relay is a compact electronic switching module for replacing traditional relays in control circuits. It provides optocoupler isolation for the control signal and supports efficient electrical isolation between the control side and the powered device. The module uses FR120N, LR7843, or AOD4184 MOSFET transistors for low on-resistance switching. It is designed for 3V or 5V signal control and supports high-level start, low-level stop, and PWM speed control. With a maximum voltage of up to 100V and current handling up to 10A, it is suitable for a wide range of electronic loads.
The module includes a built-in flyback diode for voltage spike protection when switching inductive loads. Its small size and flexible connection options make it easy to integrate into electronic, robotics, and automation projects. The input side can accept a terminal block or pin, and the output can be connected with soldered terminals or direct wire bonding. The design also supports breadboard use.
Features of FR120N/LR7843/AOD4184 Isolation MOSFET Module Replacement Relay
- Optocoupler isolation
- 3V or 5V signal control
- High-level start, low-level stop
- PWM speed control
- Built-in flyback diode
- Breadboard compatible input
- Flexible output connection
Specifications of FR120N/LR7843/AOD4184 Isolation MOSFET Module Replacement Relay
- FR120N, LR7843, or AOD4184 MOSFET transistors
- Maximum voltage up to 100V
- Current handling capacity 10A
- Module size 23mm x 16mm
- 2 screw holes
- Screw hole diameter 2mm
- Hole spacing 8mm
- Signal input side: terminal block or pin
- Output: soldered terminals or direct wire bonding
How to Use FR120N/LR7843/AOD4184 Isolation MOSFET Module Replacement Relay
- Connect the control signal to the input side.
- Connect the load to the output side.
- Use a 3V or 5V signal for control.
- Set high-level start, low-level stop, or PWM speed control as needed.
More Info
- Designed as a replacement for traditional relays.
- Suitable for motor start and stop control.
- Suitable for solenoid valve control.
- Supports other tributary equipment.
| Platform | Arduino Mega, Arduino Uno, Arduino Nano |
|---|---|
| Interface Type | Digital, PWM |
| Operating Voltage (V) | up to 100V |
| Dimensions (mm) | 23mm x 16mm |
| Mounting Type | Screw holes |
| Control Type | MOSFET |
| Channel Count | 1 |
| Switching Capacity | 10A |
| Load Current (A) | 10A |
| Control Signal | Digital (3.3V/5V) |
| Chipset | FR120N/LR7843/AOD4184 |
| Relay Type | MOSFET |
| Trigger Level | High Level Trigger |
| Display Type | None |
| Material | PCB |
| Input Type (AC/DC) | DC |
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