
Overview
The Kpower M09YY is a 12 g metal-gear micro servo for RC aircraft, UAV mechanisms and micro robots. Its compact 23 × 12 × 24.3 mm body, mounting tabs and 270 mm three-wire lead support installation in small mechanisms. Operating from 4.8–8.4 V, it provides voltage-dependent torque and speed, with a DC brushed motor, potentiometer position sensing and a 900–2100 μs control-pulse range.
Features
- Metal gearing and a splined output shaft for transmitting motion to a servo horn.
- Opposing mounting tabs with mounting holes for securing the servo.
- DC brushed motor with potentiometer position sensing and an 8 μs dead band.
- Plastic case, two ball bearings and a 270 mm three-wire lead.
- 120° travel angle, with customization stated for the travel range.
Specifications
| Parameter | Value |
|---|---|
| Model | Kpower M09YY |
| Product type | Metal-gear micro servo |
| Weight | 12 g |
| Dimensions | 23 × 12 × 24.3 mm |
| Operating voltage | 4.8–8.4 V |
| Stall torque | 5.5 kg (unit as supplied; lever-arm length unspecified) |
| Rated torque | 1.4 kg (unit as supplied; lever-arm length unspecified) |
| No-load speed | 0.13 s |
| Travel angle range | 120°; customizable |
| Horn gear spline | 25T, Ø5 mm |
| Gear material | Metal |
| Motor | DC brushed |
| Protocol | PWM / TTL / RS-485 |
| No-load current | 1300 mA |
| Position sensor | Potentiometer |
| Case material | Plastic |
| Ball bearings | 2BB |
| Working frequency | 50–333 Hz |
| Operating temperature | −10 to 50 °C |
| IP rating | IP42 |
| Dead band | 8 μs |
| Control-pulse range | 900–2100 μs |
| Lead | Three-wire |
| Wire length | 270 mm |
Voltage-Dependent Torque and Speed
| Parameter | At 5 V | At 8.4 V |
|---|---|---|
| Torque | 3.5 kg·cm | 5.5 kg·cm |
| Speed | 0.16 s/60° | 0.13 s/60° |
Applications
- RC aircraft and other RC models: actuate small control linkages using the compact 12 g servo and its mounting tabs.
- UAV mechanisms: position small onboard mechanisms where the compact body and 270 mm lead help with installation and cable routing.
- Micro robots: drive small joints or linkages using metal gearing and potentiometer-based position sensing.
- Intelligent medical-device mechanisms: provide compact mechanical positioning within the stated electrical and operating limits.
Documents
- Kpower M09YY Drawing — Drawing (PDF)
- Kpower Servo 3 — Manual (PDF)
- OCServo OCS 351CAN Drawing — Ocservo Ocs 351 Can Drawing (PDF)
Product Video
Visual Details
Product Video
Application Examples


Features and Design


Specifications and Performance



Additional Product Details


Setup and Use


Interfaces and Connections



