This combination of small size and robust performance makes it the perfect choice for projects that require precision and strength in a small space. It’s ideal for robotic arms, steering in RC models (airplanes, cars, boats), and any project where you need a reliable and strong servo that can withstand more wear and tear.
The MG90S is controlled by a standard 3-wire PWM signal, making it fully compatible with most microcontrollers, including all Arduino and ESP32/ESP8266 boards.
Key Features
- Metal Gears: Provides superior durability, a longer lifespan, and less chance of stripping under load compared to plastic gears.
- Higher Torque: Delivers stronger stall torque than the SG90, allowing it to move heavier loads.
- Faster Speed: Operates at a quicker rotational speed, providing a more responsive feel.
- Standard 180° Operation: Rotates 90 degrees in each direction for a total of 180 degrees of movement.
- Universal Connector: The 3-pin connector is compatible with all standard RC receivers and microcontroller header pins.
Technical Specifications
| Feature | Specification |
| Model | MG90S |
| Gears | Metal |
| Operating Voltage | 4.8V – 6.0V |
| Stall Torque | 1.8 kg-cm (at 4.8V) / 2.2 kg-cm (at 6.0V) |
| Operating Speed | 0.10 sec/60° (at 4.8V) / 0.08 sec/60° (at 6.0V) |
| Rotation Angle | 180° |
| Weight | ~13.4 g |
| Dimensions | 22.8mm x 12.2mm x 28.5mm |
Pinout
Controlling the servo is simple. Just connect the 3-pin header as follows:
- Brown Wire: Ground (GND)
- Red Wire: VCC (Positive Voltage, 4.8V – 6.0V)
- Orange Wire: PWM Signal (Data)
Package Includes:
- 1x MG90S Micro Servo Motor
- 3x Servo Horns (Arms)
- Mounting Screws












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