MG90S Metal Gear Micro Servo – 1.8kg-cm Torque

The MG90S is a micro servo motor with metal gears, offering improved durability over the common SG90. It operates at 4.8-6V, delivering up to 1.8 kg-cm of torque, making it suitable for small robotics, RC vehicles, and animatronics. This servo features a compact design and smooth rotation, ideal for applications where size and weight are constraints.

Key Specifications

What You Can Build With This

• Arduino-based robotic arm with precise grip control
• Pan-tilt camera mount for object tracking
• RC airplane control surfaces (rudder, elevator, aileron)
• Automatic pet feeder flap mechanism

Compatibility

This servo works with any microcontroller or servo driver that outputs a standard PWM signal, including Arduino Uno, ESP32, and Raspberry Pi (with external power). It's commonly paired with the PCA9685 servo driver for multi-servo projects. Draws peak current around 700mA at stall, so an external 5V supply is recommended when using multiple servos.

Wiring Notes

Connect the brown wire to ground, red to 4.8-6V power, and orange to the PWM signal pin. Avoid powering it directly from the Arduino 5V pin for more than one servo; use a separate power source. A 100μF capacitor across the power lines helps reduce voltage spikes.

Why Buy from Compoden

Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.