HW-532A D4184 MOSFET FET Module – Motor Start Stop PWM Control

HW-532A D4184 Isolated MOSFET FET Module for Motor & Solenoid Control

Take precise control of motors, solenoid valves, and other DC-powered equipment with the HW-532A D4184 Isolated MOSFET FET Module. Designed for makers, engineers, and electronics hobbyists, this relay plate board offers reliable PWM speed regulation and on/off switching with full optocoupler isolation — keeping your control circuitry safely separated from your load. Made in Mainland China.

Key Features

• MCU & Control Board Compatible: Works seamlessly with 3V or 5V logic signals from Arduino, Raspberry Pi, and other microcontrollers.
• High Level Start / Low Level Stop: Simple logic-level control — high signal starts the load, low signal stops it. Supports PWM for variable speed regulation.
• Wide Application: Ideal for controlling DC motors, solenoid valves, LED strips, pumps, fans, and other high-current equipment.
• Optocoupler Isolation: PC817 linear optocoupler isolates the control signal from the power supply of the controlled device, dramatically improving noise immunity and protecting your microcontroller.
• High Current Capacity: Supports up to 50A maximum current with an input voltage range of DC 5V–40V — perfect for demanding industrial and hobbyist applications.
• Compact Form Factor: Measures just 80 × 60 mm (approx. 3.14" × 2.36") for easy integration into enclosures and project builds.

Specifications

Important Usage Notes

• The maximum current and supply voltage of the controlled equipment depend on the MOS tube model and its datasheet specifications.
• Do NOT reverse polarity — connecting positive and negative poles incorrectly will permanently damage the module.
• MCU output: HIGH = Start | LOW = Stop | PWM = Speed Regulation.

What's in the Box

• 1 × HW-532A D4184 Isolated MOSFET MOS Tube FET Module

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For more on electrical safety standards and safe wiring practices, refer to the U.S. Consumer Product Safety Commission – Electrical Safety resource.

Learn more: Microprocessor development board

Frequently Asked Questions

Q: What microcontrollers are compatible with the HW-532A D4184 MOSFET module?

A: The HW-532A is compatible with any microcontroller or control board that outputs a 3V or 5V digital signal, including Arduino, Raspberry Pi, ESP32, STM32, and similar platforms. Simply connect your MCU's digital output pin to the signal input of the module.

Q: Can I use this MOSFET FET module for PWM motor speed control?

A: Yes! The HW-532A D4184 module supports PWM (Pulse Width Modulation) speed regulation. By sending a PWM signal from your MCU, you can smoothly control the speed of DC motors or the brightness of LED loads within the DC 5V–40V, 50A maximum rating.

Q: What is the purpose of the optocoupler isolation on this board?

A: The PC817 linear optocoupler provides electrical isolation between your low-voltage control circuitry (e.g., your microcontroller) and the high-voltage/high-current load side. This protects your MCU from voltage spikes and electrical noise generated by motors or solenoids, greatly improving reliability and preventing damage.

Q: What is the maximum load this MOSFET module can handle?

A: The HW-532A D4184 module supports an input voltage range of DC 5V to 40V and a maximum current of 50A. Always ensure your load stays within these parameters and consult the D4184 MOSFET datasheet for detailed derating curves and thermal considerations.