Micro 9 Gram Hobby Servo - SG90

SG90 Micro 9 g Hobby Servo

Overview The SG90 Micro Servo is a compact, lightweight servomotor designed for precision control in electronics, robotics, and hobby projects. With positional feedback sensors, it offers far greater accuracy than standard DC motors, making it ideal for applications requiring exact angles, linear positions, velocities, and accelerations.

Key Features

• Modulation: Analog

• Torque: 1.80 kg‑cm at 4.8 V

• Speed: 0.12 sec/60° at 4.8 V

• Motor Type: 3‑pole

• Gear Type: Plastic

• Rotation/Support: Bushing

• Pulse Width: 500–2400 µs

• Connector Type: JR

• Dimensions: 23 × 12.2 × 29 mm

• Weight: 9 g

• Rotation Range: ±180° when powered; can be rotated 360° manually when unpowered

Additional Information

• Design Choice: Uses onboard programming instead of a locking pin, functioning as a standard 180° servo during operation

• Compact Size: Fits easily into small projects where space is limited

• Cost‑Effective: Affordable yet powerful, widely included in Arduino and RepRap kits

• Ease of Use: Simple wiring and control via PWM signals, compatible with most microcontrollers

• Versatility: Despite its small size, delivers reliable torque for lightweight mechanical tasks

Typical Applications

• 3D Printing: Controls linear motion of extruder mechanisms in RepRap printers (e.g., iPrusa range)

• Robotics: Precision control of joints for extending/contracting limbs, gripping, or directing sensors

• Cameras: Auto‑focusing mechanisms for lenses and optical clarity

• Solar Tracking: Adjusting panels or solar‑reactive devices for maximum energy gain

• Educational Kits: Commonly included in Arduino starter kits for learning servo control

• Compact Projects: Ideal for small robots, RC planes, and other hobbyist builds requiring lightweight precision

What’s in the Box

• 1 × SG90 Micro 9 g Hobby Servo

• Mounting screws and servo horns (varies by supplier)