Overview
Kpower P0025 servo motor (WK-P0025) is an ultra-light 2.5 g micro servo motor designed for compact RC models and small robotics mechanisms where space and weight are limited. It uses a coreless motor and plastic (POM) gears, with PWM control and a potentiometer position sensor.
Key Features
- Ultra-light micro servo design: 2.5 g
- Coreless motor
- Plastic gear train (POM)
- Standard PWM servo control
- Travel angle: 120° (customizable)
- Dual ball bearing (2BB)
- IP rating: IP42
Customization notes shown for this model include servo wire length, control type, and position sensor customization. For customization requests, contact customer service via the store contact page.
Specifications
| Model | P0025 / WK-P0025 |
| Type | Micro servo |
| Weight | 2.5 g |
| Dimensions | 19.8 x 8.2 x 18.9 mm (0.78" x 0.32" x 0.74") |
| Operating voltage | 4.8 - 8.4 V |
| Stall torque | 0.7 kg.cm @ 4.8 V; 0.8 kg.cm @ 6.0 V |
| Rated torque | 0.2 kg |
| No-load speed | 0.08 sec/60° @ 4.8 V; 0.07 sec/60° @ 6.0 V |
| Travel angle | 120° (customizable) |
| Control protocol | PWM |
| Working frequency | 50 - 333 Hz |
| Pulse lengths | 900 - 2100 us |
| Dead band | 8 us |
| Position sensor | Potentiometer |
| Motor | Coreless motor |
| Gear material | POM |
| Case material | Plastic |
| Horn gear spline | 20T, phi 3.6 mm |
| Ball bearing | 2BB (dual ball bearing) |
| Stall current | 500 mA |
| Wire length | 185 mm |
| Operating temperature | -10 - 50 C |
| IP rating | IP42 |
What's Included
- P0025 / WK-P0025 micro servo motor
- Servo horns (set)
- Mounting screws (set)
Applications
- Humanoid robots, multi-legged/bionic robots, quadruped robots
- Robotic arms, exoskeleton mechanisms
- AGV vehicles, ARU robots
- RC models (including R/C car models and hand-launch gliders)
- Small drones / small aircraft, micro toys, smart door lock mechanisms, smart wearable devices
Manuals
Details

The WK-P0025 is an ultra-light 2.5 g micro servo built for tight installs in RC models and compact robotics.

At just 2.5 g, it’s a practical choice when every gram counts in small aircraft, drones, and micro mechanisms.

Coreless motor performance with PWM control is paired with common accessories for quick mounting and setup.

Fast response and a compact footprint suit control surfaces, steering, and other lightweight RC actuation tasks.

Common uses include RC cars, small drones, and DIY micro toy or educational robotics projects.

A lightweight plastic housing and POM gear train keep the servo quiet and efficient for everyday PWM systems.



Wire length, control type, and position-sensor options can be customized on request for specific builds.
