
Overview
The Kpower P0090 is a 9 g plastic gear micro servo for RC aircraft, UAVs and compact robotic mechanisms. Its 22.7 × 12.5 × 26.9 mm body supports space-conscious installations, while a 275 mm lead provides connection reach. Torque is specified at 1.6 kg·cm at 4.8 V and 1.8 kg·cm at 6.0 V, with corresponding speeds of 0.10 and 0.09 s/60°.
Features
- POM plastic gears and a translucent blue plastic housing with mounting tabs.
- Coreless DC brushed motor with potentiometer position sensing.
- Two ball bearings (2BB).
- 120° travel angle, with customizable travel specified.
- 21T output horn spline with a 4.8 mm diameter.
Specifications
Voltage-Dependent Performance
| Parameter | At 4.8 V | At 6.0 V |
|---|---|---|
| Torque | 1.6 kg·cm | 1.8 kg·cm |
| Speed | 0.10 s/60° | 0.09 s/60° |
Mechanical, Electrical and Environmental Specifications
| Parameter | Value |
|---|---|
| Model | P0090 |
| Product type | Plastic gear micro servo |
| Stall torque | 1.8 kg·cm |
| Rated torque | 0.5 kg; complete torque unit not specified |
| No-load speed | 0.09 s/60° |
| Weight | 9 g |
| Dimensions | 22.7 × 12.5 × 26.9 mm |
| Wire length | 275 mm |
| Travel angle range | 120°; customizable |
| Operating voltage | 4.8–8.4 V |
| Horn gear spline | 21T, Ø4.8 mm |
| Gear material | POM |
| Motor | DC brushed; coreless |
| Protocol | PWM / TTL / RS-485 |
| No-load current | 1000 mA |
| Position sensor | Potentiometer |
| Case material | Plastic |
| Ball bearings | 2BB |
| Working frequency | 50–333 Hz |
| Operating temperature | −10 to 50 °C |
| IP rating | IP42 |
Applications
- RC aircraft and fixed-wing UAV mechanisms: compact servo actuation for control linkages where the 9 g weight and small body help limit installation mass and space.
- Micro robots and multi-legged bionic robots: joint and linkage actuation using a compact servo with 120° travel.
- Smart finger robots: small finger-linkage mechanisms that benefit from the compact housing and 275 mm lead.
- STEAM education and robot toys: moving joints and demonstration mechanisms using a lightweight plastic gear servo.
- Intelligent medical-device mechanisms: compact mechanical actuation where a small, lightweight servo is required.
Documents
- Kpower P0090 Drawing — Drawing (PDF)
- Kpower Servo 3 — Manual (PDF) — DMC-026 filename
- OCServo OCS 351CAN Drawing — Ocservo Ocs 351 Can Drawing (PDF)
Product Videos
Visual Details
Product Video
Application Examples



Options and Model Comparison


Features and Design

Specifications and Performance


Setup and Use



Additional Product Details


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