Tower Pro Micro Servo 9g

Key Features & Specs (SG90)

  • Weight: ~9g.
  • Dimensions: Approx. 23×12.2x29mm.
  • Torque (Stall): 1.8 kg-cm (at 4.8V).
  • Speed: 0.1 sec/60° (at 4.8V).
  • Operating Voltage: 4.8V – 6.0V (often works well at 5V).
  • Gear Type: Typically POM (Plastic/Nylon).
  • Rotation: ~180 degrees (90° each way from center).
  • Control: Standard Pulse Width Modulation (PWM).

Common Uses

  • Robotics (small arms, grippers).
  • RC planes, cars, helicopters (light models).
  • Camera gimbals.
  • Educational STEM projects (Arduino, Raspberry Pi).

How it Works

  • Power: Three wires: Ground (Brown/Black), Power (Red), Signal (Orange/Yellow).
  • Control: Microcontrollers send a varying pulse width (PWM signal) to the signal wire to set its angle.
  • External Power: Crucial for Arduino projects to prevent current draw issues, using an external adapter.
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