MG90 MG90S Metal Gear SERVO 180 degree
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020

MG90 MG90S Metal Gear SERVO 180 degree

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  • Product SKU: KG319
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The Tower Pro MG90S Mini Digital Servo is a 180° rotation servo. It is a Digital Servo Motor that receives and processes PWM signals faster and better. It equips sophisticated internal circuitry that provides good torque, holding power, and faster updates in response to external forces.

The good optimized performance and reliability of our servos have made them the favorite choice of many RC hobbyists.

They are packed within a tight sturdy plastic case which makes them water and dust-resistant which is a very useful feature in RC planes, Boats, RC Monster Trucks, etc. It equips a 3-wire JR servo plug which is compatible with Futaba connectors too.

Here's overview and some details about of the MG90 and MG90S Metal Gear Servo Motors:

Type: Both the MG90 and MG90S are digital servo motors, which means they use digital control signals, typically Pulse Width Modulation (PWM), for precise position and speed control.

Gear Material: These servo motors are equipped with metal gears. Metal gears are known for their durability and ability to handle higher loads compared to plastic gears. This makes them suitable for applications where strength and longevity are important.

Rotation Angle: These servo motors are capable of rotating up to 180 degrees. This range allows for a wide variety of positioning tasks in robotics and other projects.

Torque: The specific torque output may vary depending on the voltage supplied and the model (MG90 or MG90S). Typically, they offer torque in the range of 2 to 2.2 kg/cm (approximately 27.8 to 30.5 oz/in) at 4.8V.

Voltage Range: The operating voltage for both the MG90 and MG90S is typically in the range of 4.8V to 6V, making them compatible with common power sources like rechargeable batteries.

Control: They support PWM control, allowing for precise and adjustable control of the servo's position and speed. The PWM signal's pulse width determines the servo's position within the 180-degree range.


The MG90 and MG90S are widely used in RC (Remote Control) airplanes, cars, boats, and other vehicles, thanks to their ability to provide reliable and precise control. They are also commonly used in robotics for tasks that require accurate angular positioning, such as robotic arms and grippers, as well as various automation projects.

Size: Both servo motors are relatively compact, making them suitable for applications where space is limited.

Wire Description

  • RED – Positive
  • Brown – Negative
  • Orange – Signal

Technical Details

  • Modulation: Analog
  • Torque : 4.8V: 2.20 kg-cm , 6.0V: 2.50 kg-cm
  • Speed : 4.8V: 0.11 sec/60°
  • Rotation/Support: Dual Bearings
  • Rotational Range: 180°
  • Pulse Cycle: 20 ms
  • Pulse Width: 400-2400 µs

Physical Attributes

  • Gear Type: Metal
  • Length × Width × Height(mm) : 23.1 × 12.2 × 29.0
  • Weight (gm): 13

Additional Details

  • High resolution
  • Accurate positioning
  • Fast control response
  • Constant torque throughout the servo travel range
  • Excellent holding power

Package Includes

  • 1 x MG90 MG90S Metal Gear SERVO 180 degree

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