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Tiny metal-gear servo, silver body, white output horn, three-colour lead visible

Adafruit

Adafruit Micro Servo High Torque Metal Gear ADA-1143

SKU CH-J5AK-67KCS

High-torque metal-gear micro servo rotates 180 degrees with 2.2 kg-cm stall torque at 6.0V and fits in 22.8 x 12.2 x 28.5 mm spaces

  • TypeOther
  • High torque in a tiny frame with metal gears rated at 2.2 kg-cm
  • Rotates 180 degrees for full motion range in compact builds
  • Weighs only 13.4 grams for lightweight robotics and prototypes
  • Runs on 4.8V to 6.0V DC for flexible power options
  • Compatible with standard servo libraries and Arduino shields

Compact metal-gear servo for small builds

This Adafruit micro servo uses metal gears to deliver higher torque in a 22.8 x 12.2 x 28.5 mm package weighing 13.4 grams. It rotates approximately 180 degrees and operates on 4.8V to 6V DC. The unit suits beginners adding motion to robots or models without designing a custom motor controller. It integrates with standard servo libraries and common driver boards.

Sustained torque and speed at two voltages

At 4.8V the servo produces 1.8 kg-cm stall torque and moves 60 degrees in 0.1 seconds. At 6.0V torque rises to 2.2 kg-cm and the same rotation takes 0.08 seconds. Performance scales linearly with the supplied voltage, so continuous loads should be matched to the chosen operating level. The metal gear train resists stripping better than nylon alternatives under repeated cycling.

Simple three-wire connection with included horns

Control uses a standard pulse-width signal: 1.5 ms for centre, roughly 2 ms for 90 degrees right, and 1 ms for 90 degrees left. The orange signal wire connects to any digital pin, commonly pin 9 or 10 on an Arduino. A few horns and mounting hardware ship in the bag. Builders needing continuous rotation or higher holding force will find this servo insufficient.

Highlights

  • High torque in a tiny frame with metal gears rated at 2.2 kg-cm
  • Rotates 180 degrees for full motion range in compact builds
  • Weighs only 13.4 grams for lightweight robotics and prototypes
  • Runs on 4.8V to 6.0V DC for flexible power options
  • Compatible with standard servo libraries and Arduino shields

Specifications

BrandAdafruit Industries
ModelADAID-1143
Part NumberADA-1143
TypeOther

Questions about this item

How much heat or noise does the ADA-1143 produce when running continuously at 6.0 V?

The servo draws higher current under load at 6.0 V, so it will warm up during continuous operation; the metal gears add a faint mechanical whine but no fan noise.

What controller and power source must I already have to operate this servo?

You need a microcontroller such as an Arduino with a free PWM pin (pin 9 or 10 works with the standard Servo library) and an external 4.8 V to 6.0 V DC supply capable of delivering the stall current.

Will the ADA-1143 work with my older 5 V Arduino board and existing servo brackets?

Yes, the control signal is 5 V compatible and the 22.8 x 12.2 x 28.5 mm body fits standard micro-servo mounts; the included horns match common spline patterns.

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