The 4.5V 35V dc motor PWM speed controller 5A operates output current and 90W maximum power, switching at 20kHz PWM frequency with a 1% to 100% duty cycle range, drawing just 7µA quiescent current, weighing 15 grams in a body. This pwm speed control module’s 20kHz frequency is the highes PWM controller lineup comfortably above the 20kHz upper limit of human hearing, acoustically silent operation at all speeds including the lowest duty cycle settings where lower frequency controllers tend to produce the most noticeable audible whine.
The speed controller price includes a 1% minimum duty cycle, which is effectively a near zero speed setting that most PWM controllers in this lineup cannot offers the 10A/40V controller’s 10% minimum means motors still receive meaningful power at minimum setting, while this dc motor regulator’s 1% lower floor allows motors to slow to near standstill without cutting power entirely. This 12v dc motor speed controller’s 7µA quiescent current is extraordinarily low for an active controller, equivalent to about 0.000007A at standby.
This 4.5v 35v motor controller’s 5A and 90W ceiling positions it in the mid range of the pwm lineup suitable for most small industrial motors but insufficient for high torque motors that exceed 5A under load conditions, making it exceptionally suited for always connected battery powered installations where standby drain across extended periods would otherwise deplete battery charge. This pwm speed controller is working on developing efficient variable speed dc motor applications and 12V electronics projects. Available on StemVolt.
Related Product:
- Checkout 20A Brushed ESCÂ
Features:
- 20kHz switching highest frequency in lineup, fully inaudible at all speeds
- 1% minimum duty cycle enables near zero speed without cutting power
- 7µA quiescent draw negligible standby for always on battery
- 4.5V-35V range covers 5V, 12V, 24V motor power supply systems
Technical Specifications:
| Specification | Details |
|---|---|
| Product Type | PWM Speed Controller |
| Operating Voltage | 4.5V – 35V DC |
| Output Current | 5A |
| Maximum Power | 90W |
| PWM Duty Cycle | 1% – 100% |
| PWM Frequency | 20kHz |
| Quiescent Current | 7µA |
| Dimensions | 30mm × 26mm × 14mm |
Applications:
- PWM speed controller 5A used for Arduino, battery powered quiet fan speed
- Project uses pwm speed control at 20kHz frequency
- Solar system dc motor regulator for 24V solar pump control
- IoT device uses 4.5v 35v motor controller for always on battery operation
Package Includes:
-
1 x 4.5V 35V DC Motor PWM Speed Controller 5A














Randhir Sood –
Happy with purchase
Manoj Kulkarni –
Trusted store product
Hardik Paswan –
Same day dispatch and safe packaging ensured a reliable buying experience, while whatsapp support and a secure payment gateway made ordering simple and convenient
Bharat Puri –
Smooth and efficient motor speed regulation, making it ideal for ATL lab projects, DIY electronics, robotics applications, and educational experiments