1803BK 30W DC Motor PWM Speed Controller with Switch

The 1803BK 30W DC Motor PWM Speed Controller is a compact module designed for adjustable speed control of small brushed DC motors. It features a rotary potentiometer, built-in switch, PWM speed adjustment, and power indicator LED.

Key Features

• Model: 1803BK

• Maximum output power: 30W

• Maximum continuous output current: 2A

• Recommended operating voltage: 1.8–12V DC

• PWM duty cycle adjustment: 0–100%

• Rotary potentiometer for manual speed control

• Built-in ON/OFF switch

• Power indicator LED

• 2A self-recovery fuse, as specified in the matching product manual

• Compact PCB design

Product Description

The 1803BK 30W DC Motor PWM Speed Controller is a compact and convenient solution for controlling the speed of small brushed DC motors.

Using Pulse Width Modulation (PWM), this module adjusts the motor's speed through a rotary potentiometer. Its integrated switch allows convenient power control, while the LED indicator shows when the controller is powered.

Main Features

Adjustable PWM Speed Control

Adjust the PWM duty cycle from 0% to 100% using the rotary potentiometer.

Compact Motor Control Module

Its small PCB format makes it suitable for electronics experiments, DIY projects, and compact motor-control setups.

Built-in Switch

The potentiometer incorporates a switch function for convenient ON/OFF control.

Self-Recovery Fuse

The matching 1803BK product manual specifies a 2A resettable fuse.

Power Indicator

An onboard LED indicates power status.

Technical Specifications

Applications

• Small brushed DC motor speed control

• DIY electronics projects

• Hobby robotics

• Battery-powered motor projects

• Low-power DC motor experiments

• Compatible low-power DC loads

Installation and Safety Notes

• Use a DC power supply only.

• Do not connect the controller directly to 220V AC mains.

• Check the supply voltage and motor current before connecting.

• Do not exceed the 2A continuous output current or 30W maximum output power.

• Disconnect the power supply before wiring.

• Follow the polarity markings on the actual board.

• Ensure adequate ventilation during operation.

• This module is designed for brushed DC motors, not brushless DC motors.

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• MX1508 Mini Dual Channel 1.5A DC Motor Driver – A compact dual H-bridge motor driver for small robots and battery-powered projects.

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Package Includes

• 1 × 1803BK 30W DC Motor PWM Speed Controller

Note: The product manual specifies an input range of 1.8–15V DC, while some sellers recommend a lower operating range. Confirm the permitted voltage for your supplied board revision before operating above 12V.