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Tower Pro SG90 Micro Servo Motor

SKU: 5UZ2621MSR
★★★★ ★ ★
4.3 (120 reviews)
The Tower Pro SG90 Micro Servo Motor is a compact and lightweight servo motor designed for precise angular positioning and controlled mechanical movement in robotics, RC models, automation systems, and microcontroller-based projects. Its small size and low weight make it especially suitable for applications where space and weight are important considerations. The SG90 integrates a small DC motor, reduction gear...
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The Tower Pro SG90 Micro Servo Motor is a compact and lightweight servo motor designed for precise angular positioning and controlled mechanical movement in robotics, RC models, automation systems, and microcontroller-based projects. Its small size and low weight make it especially suitable for applications where space and weight are important considerations.

The SG90 integrates a small DC motor, reduction gear train, position feedback potentiometer, and internal control electronics in a single compact housing. The user provides a servo control signal representing the desired shaft position, and the internal control circuit automatically drives the motor until the output shaft reaches the commanded angle.

The SG90 uses a lightweight POM plastic gear set and weighs approximately 9 grams. The official specification lists a stall torque of approximately 1.8 kg·cm at 4.8V, making it suitable for lightweight mechanical applications such as robotic arms, small grippers, steering mechanisms, sensor scanners, model aircraft control surfaces, and educational robotics.

The servo uses a standard 3-wire connection for power, ground, and control signal. It can be controlled using Arduino, ESP32, STM32, Raspberry Pi Pico, RP2040, PIC, AVR, RC receivers, and dedicated servo controller boards.

Key Features

  • Compact micro servo motor
  • Lightweight design of approximately 9g
  • Precise angular position control
  • POM plastic gear transmission
  • Stall torque of approximately 1.8 kg·cm at 4.8V
  • Fast operating speed
  • Compact dimensions for space-constrained projects
  • Standard 3-wire servo connection
  • Simple servo control signal interface
  • Integrated position feedback system
  • Internal motor control electronics
  • Low-cost solution for lightweight motion-control applications
  • Suitable for robotic arms and small grippers
  • Suitable for RC aircraft and vehicle mechanisms
  • Compatible with standard servo control libraries
  • Easy integration with microcontrollers
  • Common packages include servo horns and mounting hardware
  • Ideal for beginners, students, hobbyists, and educational robotics

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Model: SG90
Brand: Tower Pro
Motor Type: Micro Servo Motor
Control Type: Positional Servo Control
Gear Type: POM Plastic Gear Set
Weight: Approximately 9g
Dimensions: Approximately 23 × 12.2 × 29mm
Stall Torque: Approximately 1.8 kg·cm at 4.8V
Operating Speed: Approximately 0.1 to 0.12 sec/60° at 4.8V, depending on SG90 variant
Nominal Operating Voltage: 4.8V
Common Practical Supply Range: Approximately 4.8V to 6V
Temperature Range: Approximately 0°C to 55°C
Dead Band Width: Approximately 1µs on official specifications
Servo Wire Length: Approximately 25cm
Servo Plug: JR Type, compatible with JR and Futaba-style connections
Control Interface: Standard Servo Position Control Signal
Number of Wires: 3
Gear Material: POM Plastic
Mounting Type: Integrated Servo Mounting Tabs
Accessories: Servo Horns and Mounting Screws on standard packages
Compatibility: Arduino UNO, Nano, Mega, ESP32, STM32, Raspberry Pi Pico, RP2040, PIC, AVR, RC Receivers and Servo Controller Boards.

Additional Resources

Tower Pro SG90.PDF

FAQ

1. What is the Tower Pro SG90 Micro Servo Motor used for?

The SG90 is used for controlled angular movement in robotic arms, grippers, RC models, steering mechanisms, sensor scanners, camera mounts, animatronics, and educational electronics projects.

2. What is the operating voltage of the SG90 Servo Motor?

The official SG90 specification lists a nominal operating voltage of 4.8V. In practical hobby applications, SG90 variants are commonly operated around 4.8V to 6V, but the exact voltage rating should be checked for the supplied version.

3. What is the stall torque of the Tower Pro SG90 Servo?

The official Tower Pro specification lists a stall torque of approximately 1.8 kg·cm at 4.8V.

4. Can the SG90 Servo Motor be used with Arduino and ESP32?

Yes. The SG90 can be controlled by Arduino, ESP32, STM32, Raspberry Pi Pico, RP2040, PIC, AVR, and other controllers capable of generating a suitable servo position-control signal.

5. What is the difference between the SG90 and MG90S servo motors?

The SG90 uses a lightweight plastic gear set, while the MG90S uses metal gears for greater mechanical durability. The SG90 is generally preferred for lightweight and cost-sensitive projects, while the MG90S is more suitable for applications requiring stronger gears and better resistance to wear.