MG90S metal gear micro servo with three horns, four screws and 3-pin plug

MG90S Metal Gear Micro Servo - 180° or 360° Continuous

180 Degrees
$5.49 NZD
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MG90S metal gear micro servo with three horns, four screws and 3-pin plug
  • MG90S metal gear micro servo with three horns, four screws and 3-pin plug
  • MG90S servo front three-quarter view with purple label, metal spline and 3-wire lead
  • MG90S servo straight-on rear view showing PCB, case screws and right-side wire exit
  • MG90S micro servo top view showing metal spline, translucent casing and mounting ears
  • MG90S supplied servo horns and four mounting screws arranged on a white background
  • MG90S servo dimension guide showing 22.6 x 12.1 x 22.5 mm body and 12 g weight
  • MG90S servo close-up showing metal gear train, purple model label and 3-pin plug
MG90S Metal Gear Micro Servo - 180° or 360° Continuous
SKU: SRV-MG90S-180

MG90S Metal Gear Micro Servo - 180° or 360° Continuous

$5.49 NZD
4.0 2 reviews
9 bought this month
Angle Of Throw
Dispatch: Within 24 hours 7-day dispatch, excluding public holidays

NZ Post: 1-2 days urban · 2-4 days rural

Shipping from $5.99 urban / $9.99 rural.

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A compact MG90S metal gear micro servo for Arduino, ESP32, RC and robotics projects. Choose the 180 degree positional version for controlled movement, or the 360 degree continuous-rotation version for speed and direction control.

Specifications

Gear trainMetal
Versions180 degree positional or 360 degree continuous
Supply4.8 V to 6.0 V DC
ControlStandard 3-wire servo signal
Typical torque1.8 kgf·cm at 6.0 V, 180 degree version
WeightAbout 12 g
Body size22.6 × 12.1 × 22.5 mm
Mounting span27.6 mm
Hole centres17.6 mm
Mounting holes2.2 mm diameter
Lead coloursBrown ground, red power, orange signal

Datasheets

Full technical datasheet PDF 180 degree Quick Start guide PDF

What's in the box

1×
MG90S metal gear micro servo

Supplied with a horn set and mounting screws. Horn shape and screw appearance can vary between batches.

Great for

Robot joints and grippers
RC steering and control surfaces
Pan and tilt mounts
Small drive wheels and rollers
Animatronics
Arduino and ESP32 learning projects

Wiring & getting started

  1. Confirm the version

    Use the 180 degree version when you need a commanded angle. Use the 360 degree version when you need continuous speed and direction control.

  2. Connect the three wires

    Brown is ground, red is 4.8 V to 6.0 V power, and orange is the control signal. Join the servo and controller grounds.

  3. Start at neutral

    Test without a linkage attached. Begin near a 1.5 ms pulse, then move gradually away from neutral and check the actual response.

  4. Power it for the real load

    For loaded operation or multiple servos, use a suitable separate regulated supply and keep a common ground with the controller.
Related guide Wire & Control an MG90S Servo with Arduino or ESP32Wire up an MG90S metal-gear servo and swing it to any angle with a few lines of code, wiring, the Arduino/ESP32 code, and how to power it without resets.

Frequently Asked Questions

Answers to the questions buyers ask most.

What is the difference between the 180 degree and 360 degree versions?
The 180 degree version moves to and holds a commanded position. The 360 degree version rotates continuously, with the control signal setting direction and speed around a neutral stop point.
Can I power it from an Arduino or ESP32 board?
A single unloaded servo may work for a quick bench test, but loaded operation and multiple servos should use a suitable separate regulated supply. Always connect the supply ground to the controller ground.
What comes with the servo?
Each servo includes a horn set and mounting screws. Horn shape and screw appearance can vary between batches.
What do the wire colours mean?
Brown is ground, red is the 4.8 V to 6.0 V power input, and orange is the servo control signal.

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I'm Lukas, an engineering student and maker based in Te Awamutu. NZN grew out of a CNC build that dragged on for months because every missing cable, bolt or electronic part meant another overseas order. I started the shop so Kiwi makers can spend more time building and less time waiting for the next parcel.

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