Description
Product Overview
The hiBCTR 12‑piece PWM low‑voltage motor speed controller series (model 1803BK/1803B) is engineered to deliver precise speed regulation for DC motors ranging from 1.8 V to 12 V. Each unit incorporates a reliable NE555 timing chip, a high‑resolution potentiometer with integrated switch, and a 2 A resettable fuse that automatically restores after an overload event. The controllers are housed in a compact, heat‑resistant ABS enclosure measuring 8.31 × 5.63 × 1.85 inches, weighing only 6.7 oz, making them easy to integrate into tight spaces. Designed for both industrial and hobbyist environments, the controllers provide a duty cycle adjustable from 0 % to 100 %, delivering up to 30 W of continuous power. ![[Product front view showing all components]](https://www.agnex.store/wp-content/uploads/2026/08/d185de9bf7d04bf7b648dc747074102e.jpg)
Usage
These controllers excel in applications where precise motor speed control is essential. Typical use cases include regulating the speed of small DC fans in ventilation systems, adjusting the flow rate of aquarium oxygen pumps, driving hobbyist robotics, and fine‑tuning the performance of portable power tools. The low‑voltage input range makes them suitable for battery‑powered devices, while the robust 2 A output ensures reliable operation for medium‑size loads. Users can connect the controller directly to a DC power source—never to a 220 V AC line—to avoid damage. The simple three‑wire connection (power, ground, and motor) allows quick installation in both prototype boards and permanent industrial panels.
Why Choose Us
hiBCTR has a reputation for delivering high‑quality electronic components that meet stringent industrial standards. Each controller undergoes a multi‑stage quality assurance process, including thermal cycling, overload testing, and long‑duration endurance runs, guaranteeing a lifespan well beyond typical market offerings. The inclusion of a self‑restoring fuse provides an extra layer of safety, automatically resetting after a short‑circuit without the need for manual replacement. Our dedicated technical support team is available to assist with integration, troubleshooting, and firmware updates, ensuring that customers receive comprehensive after‑sales service. Moreover, the product’s competitive pricing and bulk‑pack configuration (12 pieces per kit) deliver excellent value for manufacturers and DIY enthusiasts alike.
Key Features
- Precise speed control from 0 % to 100 % duty cycle for smooth motor operation
- Wide input voltage range (1.8 V‑12 V) accommodates batteries, adapters, and solar panels
- Built‑in 2 A resettable fuse protects against overloads and short circuits
- Compact ABS housing for easy mounting in confined spaces
- Responsive customer support and warranty coverage for peace of mind
FAQ
Can I use this controller with a 12 V car battery?
Yes, the controller accepts up to 12 V DC input, making it compatible with standard automotive batteries, provided the motor current does not exceed the 2 A continuous rating.
What type of motor is compatible with this controller?
Any brushed DC motor that operates within the 1.8 V‑12 V voltage range and draws less than 2 A continuous current can be safely controlled.
Is the controller protected against reverse polarity?
The controller includes a reverse‑polarity protection diode that prevents damage if the power leads are accidentally swapped.
How do I reset the fuse after an overload?
The resettable fuse automatically restores once the current falls below the safe threshold and the controller cools for a few seconds. No manual intervention is required.
Do you offer bulk pricing for larger orders?
Yes, hiBCTR provides tiered discounts for bulk purchases. Please contact our sales team for a customized quote based on your required quantity.




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