Overview
Kpower M09YY servo motor is a metal gear micro servo designed for compact robotics and model actuation. It features a 12 g lightweight micro design, DC brushed motor, potentiometer position sensor, and multi-protocol control support (PWM | TTL | RS-485). Travel angle range is specified as 120° (customizable).
Key Features
- Precision machined metal gear
- High-speed response
- Long lifespan potentiometer
- Metal gears with 25T output spline (phi 5 mm)
- 2BB (dual ball bearing) support
- Plastic case; IP42 rating
- Working frequency: 50 ~ 333 Hz
Specifications
| Model | M09YY |
| Type | Metal Gear Micro Servo |
| Stall Torque | 5.5 kg |
| Rated Torque | 1.4 kg |
| Torque | 3.5 kg.cm 5V; 5.5 kg.cm 8.4V |
| No-load Speed | 0.13 s |
| Speed | 0.16 sec/60° 5V; 0.13 sec/60° 8.4V |
| Weight | 12 g |
| Dimension | 23 × 12 × 24.3 mm |
| Travel Angle Range | 120° (Customizable) |
| Operating Voltage | 4.8 ~ 8.4 V |
| Horn Gear Spline | 25T phi 5 mm |
| Gear Material | Metal |
| Motor | DC Brushed |
| Protocol | PWM | TTL | RS-485 |
| No-load Current | 1300 mA |
| Position Sensor | Potentiometer |
| Case Material | Plastic |
| Ball Bearing | 2BB |
| Working Frequency | 50 ~ 333 Hz |
| Dead Band | 8 us |
| Pulse Lengths | 900~2100 us |
| Wire Length | 270 mm |
| Operating Temperature | -10 ~ 50°C |
| IP Rating | IP42 |
Applications
- Humanoid robots
- Robotic arms
- Exoskeletons
- Quadruped robots
- AGV vehicles
- ARU robots
- R/C aircraft models
- UAV drone platforms
- Micro robots
- Intelligent medical devices
Wiring / Pinout
- Brown: GND
- Red: Vcc
- Orange: Signal
Control Signal Notes
- Input signal pulse width: 20 ms per cycle
- Example pulse-width vs. output angle mapping: 0.5 ms (-90°), 1.0 ms (-45°), 1.5 ms (0°), 2.0 ms (45°), 2.5 ms (90°)
- High-frequency signal compatibility statement: 50-300 Hz
Manuals
Details
The M09YY is a compact 12 g micro servo built for tight installations in robotics, UAVs, and RC platforms.
Precision metal gearing and a long-life potentiometer help maintain repeatable positioning over extended use.
Supports PWM, TTL, and RS-485 control, with key torque/speed specs and wiring length summarized for quick selection.
Selection notes for torque, speed, travel angle, and voltage make it easier to match a servo to your mechanism.
Multiple horn styles provide flexible linkage geometry for arms, brackets, and custom mechanisms.
Pulse-width control mapping helps dial in the target angle, with high-frequency signal compatibility noted.
Customization options are available for appearance, torque, protocols, wiring, and reliability features by application.
For continuous duty, selecting a rated load well below stall torque helps reduce heat and extend service life.
Standard 3-wire hookup keeps integration straightforward: GND (brown), Vcc (red), and signal (orange).
An internal component breakdown highlights the key parts that influence performance: gears, bearings, motor, and sensor.
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