PWM Mini DC Motor Speed Controller Module 3V-35V 5A 90W Adjustable Regulator & LED Dimmer

$19.92 USD

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PWM Mini DC Motor Speed Controller Module — 3V–35V, 5A, 90W, 10kHz

The ZS-X4A is a compact, high-efficiency PWM DC motor speed controller module for brushed DC motors, LED strips, fans, and resistive loads. Operating from 3V to 35V with up to 5A continuous current (90W max), it covers the full range of 3.7V LiPo, 5V USB, 12V automotive, and 24V industrial supply voltages. The 10kHz switching frequency is above the audible range, eliminating motor whine — a key advantage over lower-frequency controllers.

Available in 1, 5, or 10-piece packs.

Specifications

Model: ZS-X4A
Input Voltage: DC 3V – 35V
Maximum Current: 5A continuous
Maximum Power: 90W
PWM Frequency: 10kHz (inaudible, no motor whine)
PWM Duty Cycle: 1% – 100% (fully adjustable via potentiometer)
Quiescent Current: 15mA (standby)
Control: Single potentiometer knob
PCB Size: 24 × 30mm
Package: SMD components, compact form factor

Key Features

10kHz PWM: Silent operation — no audible motor whine at any speed setting
Wide voltage range: Works with 3.7V LiPo, 5V, 6V, 12V, 24V, and up to 35V systems
Simple single-knob control: Turn clockwise to increase speed/brightness
Compact 24×30mm footprint: Fits in tight enclosures and panel cutouts
Low standby current: 15mA quiescent — suitable for battery-powered applications

Wiring

IN+ → Positive supply (3–35V DC)
IN− → Negative supply (GND)
OUT+ → Motor/load positive
OUT− → Motor/load negative
Turn potentiometer fully counterclockwise for 0% (off), fully clockwise for 100% (full speed)