Tower Pro SG90 Servo Motor, 9g Mini

The Tower Pro SG90 is one of the most popular mini servo motors used in RC and hobby robotics, delivering precise angular position control across a 180° range through standard PWM signaling. By varying the duty cycle of the control pulse, you can command the servo’s arm to move to and hold any specific angle within its range, making it ideal for tasks that demand accurate, repeatable positioning.

Despite weighing just 9 grams, this servo can lift a maximum load of 1.6kg when suspended at 1cm from the shaft, giving it real usable strength for its size. Its plastic gear train keeps the unit lightweight and affordable while still standing up to everyday hobbyist use across robot arms, CNC machine tool positioning, RC car steering systems, and general automation projects.

• Operating Voltage – 3V to 7.2V
• Stall Torque @4.8V – 1.2 kg-cm
• Stall Torque @6.6V – 1.6 kg-cm
• Gear Type – Plastic
• Weight – 9 grams
• Control Method – PWM angular position control
• Rotation Range – 180°

Compact, precise, and easy to control from any microcontroller, the Tower Pro SG90 Servo Motor is a go-to component for robotics and RC builds alike.