Mini Servo Motor MG90S Metal Gear for Arduino RC Planes

Specifications

• Product Model: MG90S
• Working torque: 2KG/cm
• Reaction speed: 0.11 seconds / 60 degrees (4.8V)
• Operating temperature: 0  -55
• The dead band setting: 5 microseconds
• Plug Type: JR, FUTABA General
• Rotation angle: 180 degrees
• Servo: analog Servo
• Operating voltage: 4.8V
• Structural Material: copper metal teeth, coreless motor, double ball bearing
• Scope: small and medium-sized electric model aircraft and model.

Applications

• RC Vehicles: Perfect for steering in 1/16 and 1/18 scale RC cars or tail rotors in RC helicopters.
• Robotics: Ideal for humanoid robot joints, robotic grippers, and hexapods.
  Drones & Fixed Wings: Controls ailerons, elevators, and rudders with high precision.
• DIY Electronics: Pan-and-tilt camera mounts for Raspberry Pi/Arduino projects.

Features:

• Provides 180-degree rotation
• Compact design suitable for tight spaces
• Water and dust-resistant plastic case for durability
• Compatible with Futaba connectors
• Swift and precise movements for enhanced control
• Includes 3-pin power, control cable, and mounting hardware for easy installation

Package Includes:

• 1 x Mini Servo Motor MG90S Metal Gear for Arduino RC Planes

Frequently Asked Questions (FAQs)

• What is the difference between MG90S and SG90?
  The MG90S features metal gears and a ball bearing, making it stronger and more durable than the plastic-geared SG90.
• Can I rotate this servo 360 degrees?
  No, this is a standard 180-degree servo. For continuous rotation, you would need a 360-degree modified version.
• What do the wire colors mean?
  Typically: Brown = Ground (GND), Red = Positive (VCC), and Orange = PWM Signal.
• Is it waterproof?
  No, the MG90S is not waterproof. You should use a protective casing if using it near water.
• What is the stall torque?
  It provides approximately 2.2 kg/cm at 6V.
• Can I power this directly from an Arduino 5V pin?
  While it may work for one servo under no load, it’s best to use an external power source to avoid damaging your Arduino or causing "brown-outs."
• What signal is used to control it?
  It uses a standard Pulse Width Modulation (PWM) signal.
• Does it come with mounting hardware?
  Yes, it includes three different servo horns (arms) and mounting screws.
• Are the gears 100% metal?
  Most MG90S units use a combination of metal gears with one plastic gear for noise reduction/timing, but the primary load-bearing gears are metal.
• What is the dead band width?
  It is 5 microseconds, ensuring minimal jitter and high responsiveness.
• Can I use a 2S LiPo battery directly?
  No. A 2S LiPo is 7.4V–8.4V, which will likely burn out the motor. Use a BEC or voltage regulator to drop it to 6V.
• What is the weight of the motor?
  It weighs approximately 13.4 grams.
• Is it suitable for 3D printed robotic arms?
  Yes, it is one of the most popular choices for small-scale robotic arms.
• How do I fix jittering?
  Jitter is usually caused by insufficient power or a common ground issue. Ensure your power supply can provide enough current.