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MG90S 9g Digital Micro Servo — Metal Gear, 1.8kg·cm Torque, 4.8–6V, for RC & Arduino
MG90S 9g Digital Micro Servo Metal Gear, 1.8kg·cm Torque, 4.8–6V, for RC & Arduino
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MG90S 9g Digital Micro Servo — Metal Gear, 1.8kg·cm Torque, 4.8–6V
The MG90S is a compact 9g digital micro servo featuring metal gears for significantly improved durability and torque compared to the plastic-gear SG90. With 1.8kg·cm stall torque at 4.8V and a fast 0.1s/60° response, it is the preferred servo for Arduino robotics, RC aircraft control surfaces, robotic arms, and any application where the SG90's plastic gears are insufficient.
Key Specifications
| Parameter | Value |
|---|---|
| Weight | 13.4g |
| Dimensions | 22.5 × 12 × 35.5mm |
| Stall Torque | 1.8kg·cm (4.8V) / 2.2kg·cm (6V) |
| Operating Speed | 0.1s / 60° (4.8V) |
| Supply Voltage | 4.8V – 6V |
| Gear Type | Metal (brass/steel) |
| Control Signal | PWM (1–2ms pulse, 50Hz) |
| Connector | Standard 3-pin (Signal/VCC/GND) |
| Operating Temperature | 0°C to +55°C |
MG90S vs SG90 — Which to Choose?
| Feature | MG90S | SG90 |
|---|---|---|
| Gear Material | Metal (brass/steel) | Plastic |
| Stall Torque | 1.8kg·cm | 1.6kg·cm |
| Durability | High (metal gears) | Lower (plastic strips under load) |
| Weight | 13.4g | 9g |
| Best For | Robotics, RC aircraft, heavy loads | Light loads, educational projects |
Why Choose MG90S?
- ✅ Metal gears — won't strip under load like plastic SG90 gears
- ✅ 1.8–2.2kg·cm torque — handles heavier control surfaces and robotic joints
- ✅ Digital servo — faster response and better holding torque than analog
- ✅ Standard 3-pin connector — plug-and-play with Arduino Servo library
- ✅ Compact 9g form factor — fits standard SG90 mounting holes
Typical Applications
- Arduino robotic arm joint control
- RC helicopter swashplate and tail rotor
- RC airplane control surface (aileron, elevator, rudder)
- RC boat steering servo
- Pan-tilt camera gimbal
- Humanoid robot joint actuator
Package Contents
- 1 × MG90S 9g Digital Micro Servo (metal gear)
- Mounting screws and servo horns
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