The SG90 Micro Servo Motor is a small and lightweight actuator suitable for projects requiring controlled rotational movement. Unlike a conventional DC motor that continuously rotates when powered, a servo motor is controlled using a signal that commands its output shaft toward a desired position.
Its compact form factor makes the SG90 suitable for educational prototypes, small robotic mechanisms, model-building and DIY electronics projects where space and weight are important considerations.
The servo can be controlled from compatible microcontrollers using a servo control signal, making it useful for learning concepts such as PWM-based control, angular positioning, actuator control and basic robotics mechanics.
Typical applications include small robotic arms and grippers, pan-tilt mechanisms, steering mechanisms, automated lids, model projects and interactive STEM prototypes.
Technical Specifications
Technical Specification: Compact 9g servo actuator designed for controlled angular positioning using a servo control signal.
Detailed Product Specifications / Product Attributes
- Product Type: Micro Servo Motor
- Model: SG90
- Approx. Weight Class: 9g
- Control Method: Servo control signal / PWM
- Operating Voltage: 4.8V–6.0V DC
- Rotation: Approx. 180° nominal range
- Gear Type: Plastic/Nylon gears
- Interface: 3-wire servo connection
- Application: Electronics, STEM, DIY, RC and small robotic mechanisms
- Quantity: 1 Servo Motor
Key Features
- Compact and lightweight 9g servo design
- Suitable for controlled angular movement
- Simple 3-wire servo connection
- Compatible with many microcontroller-based projects
- Useful for robotic mechanisms and moving structures
- Suitable for educational electronics and STEM projects
- Works well with lightweight mechanical assemblies
Recommended Applications
- Small robotic arms and grippers
- Pan-tilt mechanisms
- Automated lids and flaps
- Smart dustbin prototypes
- Steering mechanisms for small models
- RC and hobby projects
- 3D-printed mechanical projects
- Arduino and microcontroller projects
- STEM and electronics demonstrations
Educational Applications
The SG90 can be used to demonstrate:
- Servo motor control
- PWM-based actuator control
- Angular positioning
- Basic robotics mechanics
- Microcontroller-to-actuator interfacing
- Mechanical linkages and motion
- Automated movement in prototype systems
What’s Included
- 1 × SG90 Micro Servo Motor
- Servo mounting/accessory hardware as supplied with the product
Important Notes
- Servo performance such as torque, speed and actual angular travel can vary with operating voltage, load and manufacturer batch.
- A microcontroller signal controls the servo; the servo should be powered according to its electrical requirements.
- Avoid mechanically forcing or blocking the servo shaft beyond its intended operating range.
- For projects with multiple servos or higher loads, use an appropriate power supply rather than relying solely on a microcontroller board’s power output.
Why Choose It?
The SG90 provides a compact way to introduce controlled mechanical movement into electronics and STEM projects. Its small size, simple interface and broad range of project applications make it suitable for prototypes where a lightweight positional actuator is required.
Product Summary
SG90 Micro Servo Motor (9g) is a compact servo actuator for controlled angular movement in DIY electronics, STEM, RC and small robotic projects. It is suitable for applications including robotic arms, grippers, pan-tilt mechanisms, automated lids and microcontroller-based motion projects.
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