SG90 9g Micro Servo, 180 or 360 Degree Rotation

The SG90 is the standard 9g micro servo for small RC aircraft, camera tilt and payload-release mechanisms, and Arduino or robotics projects. Choose the 180° positional version for control surfaces and latches, or the 360° continuous-rotation version for small drive wheels and winches.

Key features

• 180° version moves to a commanded position, about 90° either side of centre.
• 360° version has no position control: it holds still at a 1.5ms pulse, and longer or shorter pulses turn it one way or the other.
• Plastic gear train keeps the weight to about 9g for tight installs.
• 3-wire lead with a JR/Futaba-compatible plug: orange signal, red positive, brown ground.
• Supplied with one-, two- and four-point horns and mounting screws.

Specifications

• Weight: about 9g
• Operating voltage: 3.0–7.2V
• Speed: 0.12s/60° at 4.8V; 0.10s/60° at 6.6V (360° version)
• Stall torque (360° version): 1.2kg-cm at 4.8V
• Dead band: 7µs (180°), 5µs (360°)
• Operating temperature: −30 to 60°C
• Size: approx. 32 × 30 × 12mm

Power it from a 5V BEC or the receiver rail rather than straight from a flight battery, and avoid stalling it against an end stop, as the plastic gears strip under sustained load. For flight-critical surfaces on heavier models, step up to a metal-gear servo.