The MR-20116 Mini Micro Digital Servo Motor is an ultra-lightweight 3.7g class servo designed for compact robotics, RC aircraft, miniature control systems, and embedded motion projects.
It features a digital control circuit, coreless motor, and durable nylon gear transmission, delivering precise motion control while maintaining low weight and small size.
The servo operates from 3.6V to 4.8V and uses a standard PWM control signal, making it compatible with Arduino, ESP32, STM32, Raspberry Pi, and RC controllers.
With a compact body size of 20 × 8.75 × 22 mm and a JR/Futaba-compatible 3-pin connector, this micro servo is ideal for projects where space and weight are critical.
Key Features
• Ultra-lightweight 3.7g digital micro servo
• Coreless (hollow-cup) motor for smooth operation
• Durable nylon gear transmission
• PWM control interface compatible with microcontrollers
• Standard 3-wire servo connector (Signal / VCC / GND)
• Compact form factor for micro robotics and RC applications
• Includes servo horns and mounting accessories
• Approx. 150mm lead wire
Mechanical Dimensions
Approximate servo body size:
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Length: 20.0 mm
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Width: 8.75 mm
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Height: 22.0 mm
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Mounting hole spacing: ~25.83 mm
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Overall bracket width: ~30.39 mm
Connector Pinout
| Pin | Name | Description |
|---|---|---|
| 1 | Signal | PWM control input |
| 2 | VCC | DC supply input |
| 3 | GND | Ground reference |
Package Includes
• 1 × MR-20116 Digital Micro Servo
• Servo horn set
• Mounting screws and accessories
Applications
• Micro robotics projects
• RC airplanes and drones
• Arduino / ESP32 motion control
• Robot arms and grippers
• Educational robotics kits
• Camera gimbal mechanisms
• Mini automation systems
FAQ
1. Can this servo work with Arduino?
Yes. The servo supports standard PWM signals, so it works directly with the Arduino Servo library.
2. What voltage should I use?
The recommended operating voltage is 3.6V – 4.8V.
3. What is the rotation range?
The standard working angle is about 90°.
4. Does the product include accessories?
Yes. The package includes multiple servo horns and mounting screws.
