• Kpower M0090 micro servo motor with transparent blue case and exposed metal gear train
  • Kpower M0090 micro servo motor front view with black servo horn installed and 3-wire lead
  • Side angle view of transparent blue micro servo showing brass output shaft, gears, and mounting tabs
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Kpower

Kpower M0090 Micro Servo Motor, Metal Gear, 4.8–8.4V, PWM/TTL/RS-485 for RC Models & Robots

Kpower M0090 Micro Servo Motor, Metal Gear, 4.8–8.4V, PWM/TTL/RS-485 for RC Models & Robots

$35.00 USD
$35.00 USD
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Overview

Kpower M0090 is a micro servo motor designed for compact RC and robotics actuation. It features a DC brushed motor, metal gears, and a potentiometer position sensor, with support for PWM, TTL, and RS-485 control protocols.

Key Features

  • Model marking: K-power M0090 Micro Servo
  • Precision machined metal gear
  • High-speed response
  • Long lifespan potentiometer
  • Control protocol options: PWM | TTL | RS-485
  • 25T output spline (φ4.8 mm)

Specifications

Parameter Value
Stall Torque 3 kg (provided spec); 3 kg.cm @ 6V (label spec)
Rated Torque 0.5 kg
No-load Speed 0.08 s (provided spec); 0.08 sec/60 @ 6.0V (label spec)
Weight 14 g
Dimensions 21.5 × 11.8 × 22.9 mm (provided spec); 23 × 12.4 × 26.8 mm (label spec)
Travel Angle Range 120° (customizable)
Operating Voltage 4.8 ~ 8.4 V
Horn Gear Spline 25T φ4.8 mm
Gear Material Metal
Motor DC brushed
Protocol PWM | TTL | RS-485
No-load Current 800 mA
Position Sensor Potentiometer
Case Material Plastic
Ball Bearing 2BB
Working Frequency 50 ~ 333 Hz
Operating Temperature -10 ~ 50°C
IP Rating IP42

Wiring / Pinout

  • Brown: GND
  • Red: Vcc
  • Orange: Signal

Applications

  • Humanoid robots
  • Robotic arms
  • Exoskeletons
  • Quadruped robots
  • AGV vehicles
  • ARU robots
  • R/C model
  • UAV drone
  • Micro robot
  • Intelligent medical devices
  • STEM education
  • Smart home
  • Fixed wing drone
  • Luggage electronic lock
  • Robot toys
  • Grass cutter robot
  • Smart camera

What's Included

  • Kpower M0090 micro servo motor
  • Servo horns: flat, cross, round, star, single
  • Screws

Manuals

Details

Kpower M0090 Micro Servo Motor with servo horn installed, compact blue case and 3‑wire lead

A compact Kpower M0090 micro servo built for tight RC and robotics spaces, with a standard 3‑wire connection.

Kpower M0090 M Series servo feature graphic: metal gears, high-speed response, long-life potentiometerKpower M0090 micro servo kit with included horns and screws, plus listed torque, speed, size and weight

Specifications and included accessories are summarized for quick selection during RC and robot design.

Servo selection reference comparing torque, rotation angle, speed, voltage range, and control pulse detailsIncluded servo horn styles: flat, cross, round, star, and single arm options for different linkages

Multiple horn styles make it easy to match the output spline to your linkage or mounting needs.

Servo PWM pulse width chart mapping input pulse to output shaft angle, with 50–300 Hz compatibility note

PWM pulse width controls the output angle; the control range supports higher update frequencies for responsive motion.

Custom servo motor capability graphic highlighting PWM/TTL/RS-485 options and configurable featuresStall torque and speed curve explainer with guidance to use about one-quarter of stall torque as rated torque

Use stall torque as a reference point and size the servo conservatively for continuous-duty applications.

Servo wiring pinout showing brown GND, red Vcc, and orange signal on the 3‑pin connector

Simple 3‑wire hookup: brown to GND, red to Vcc, and orange to the control signal line.

Exploded view of servo motor components showing housing, gears, motor, bearing, output spline, and sensor

An internal component breakdown helps clarify how the gear train, motor, and position sensor work together.

Cross-industry application collage for drive and control modules including smart home, robots, logistics, and UAVs

Suitable for a wide range of motion-control projects—from desktop robots and smart home devices to UAV and automation builds.

ODM service workflow timeline from needs and evaluation through design, sampling, mold making, and mass production