Products for USB Sensing and Control
3205_1 - Towerpro MG91 Micro Servo
Quantity Price
In Stock
Qty: 259

Product Features

With 175° of travel, this compact servo motor is intended for light applications.
Accessories Bag

The MG91 comes with 3 servo rudder pieces and 1 set of screws.


Product Description

The MG91 is a nice small RC servo ideal for projects where size and weight are important.

RC servos are hobbyist remote control servos typically used in radio-controlled models, where they provide actuation for various mechanical systems such as the steering of a car, the flaps on a plane, or the rudder of a boat. These servos are not industrial grade and are not recommended for continuous heavy use.

This servo has slightly more torque than the previous revision. Also, unlike the MG90 the MG91 does not have mechanical stops meaning that an unpowered motor can rotate continuously in either direction but with a single rotation pot, will always snap to the same range when power is reapplied.


Product Specifications

Motor Properties

Motor TypeLimited Rotation Servo
Range of Rotation175°
Maximum Speed at Rated Voltage545°/s
Rated Torque2.2 kg·cm

Physical Properties

Gear Train MaterialMetal
Bearing TypeDual Ball Bearing
Motor Length29 mm
Motor Width23 mm
Motor Depth12.2 mm
Wire Length250 mm
Weight13 g

Electrical Properties

Rated Voltage5 V DC
Rated Current (on 1061 controller)90 mA
Rated Current (on 1066 controller)100 mA
Stall Current (on 1061 controller)480 mA
Stall Current (on 1066 controller)430 mA

Motor Controllers

The 3205 - Micro Servo can be used with the following Phidget motor controllers:

The 1061 will produce a little more torque than 1066.