Home Motors, Servos & Drivers 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, for RC & Arduino

MG90S 9g Digital Micro Servo Metal Gear, 1.8kg·cm Torque, 4.8–6V, for RC & Arduino

Regular price $8.32 USD
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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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