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The TowerPro SG90 Micro Servo Motor operates between 4.8V and 6.0V for precise 180-degree rotation. This 9g component pulls 650mA at stall while providing 1.8 kg/cm of torque. Total weight dropped from 40g to 9g in this micro version, which improves performance in weight-sensitive RC robotics.
Key Features
- 9g Lightweight Build: Plastic gear assembly measuring 22.2x11.8x31 mm. Reduces wing load on RC aircraft for better flight stability.
- Standard PWM Control: Signal timing ranges from 1ms to 2ms for angle positioning. Works with standard Arduino libraries for simple robotic arm coding.
- Stall Torque: Motor produces 1.8 kg/cm of force at 4.8V input. Moves small mechanical linkages or sensor mounts with enough power.
- Mounting Hardware: Package includes 3 different servo horns and mounting screws. Fits various DIY project frames without requiring additional plastic parts.
Frequently Asked Questions
What is the torque of SG90 servo?
The motor provides 1.8 kg/cm of stall torque at 4.8V. This force handles lightweight robotic grippers or small control surfaces on model planes.
Can I power SG90 directly from Arduino?
Stall current reaches 650mA, which often exceeds microcontroller pin limits. Use an external power supply to avoid resets during local voltage fluctuations.
Is SG90 analog or digital?
This is an analog servo that requires a continuous PWM signal. It maintains its physical position by constantly comparing the input signal to its internal potentiometer.
