Products for USB Sensing and Control

Products for USB Sensing and Control

PHIDGETS Inc.

Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
Canada
+1 403 282-7335

Towerpro MG91 Micro Servo

ID: 3205_1

This compact servo has slightly more torque than it's predecessor the MG90.

$11.00

Quantity Available: 244

Qty Price
5 $10.56
10 $10.12

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.

Accessories Bag

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

Accessories

Product Specifications

Motor Properties
Motor Type Limited Rotation Servo
Range of Rotation 175°
Maximum Speed at Rated Voltage 545°/s
Rated Torque 2.2 kg·cm
Physical Properties
Gear Train Material Metal
Bearing Type Dual Ball Bearing
Motor Length 29 mm
Motor Width 23 mm
Motor Depth 12.2 mm
Wire Length 250 mm
Weight 13 g
Electrical Properties
Rated Voltage 5 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

Servo Controllers

This servo motor needs to be connected to a servo controller board. If you're looking for higher torque, you should select a servo controller with an external power jack so it doesn't have to rely solely on USB power, which is limited. You can plug this servo directly to any of the boards in the list below by matching the color of the wire with the label on the board. Note that some servos have a white data wire and others have a yellow one- in both cases this wire corresponds to the "W" pin on the servo controllers.

Product Servo Controller
Image Part Number Price Number of Motor Ports Pulse Width Resolution
1061_1B $85.00 8 83.3 ns
1066_1 $40.00 1 83.3 ns

Check out our servo motors:

Product Motor Properties
Image Part Number Price Motor Type Range of Rotation Rated Torque Maximum Speed at Rated Voltage
3000_1 $12.00 Limited Rotation Servo 180° 3 kg·cm 286°/s
3200_0 $52.00 Limited Rotation Servo 180° 19.8 kg·cm 125°/s
3201_0 $57.75 Limited Rotation Servo Approx. 2700° 11 kg·cm 225°/s
3202_0 $18.75 Continuous Rotation Servo 2.8 kg·cm 44 RPM
3203_0 $19.00 Limited Rotation Servo 180° 4.8 kg·cm 272°/s
3204_0 $40.50 Limited Rotation Servo 180° 7.7 kg·cm 300°/s
3205_1 $11.00 Limited Rotation Servo 175° 2.2 kg·cm 545°/s
3206_0 $10.50 Limited Rotation Servo 180° 1.3 kg·cm 600°/s
3207_0 $12.50 Limited Rotation Servo 180° 2.4 kg·cm 375°/s
3209_0 $10.00 Limited Rotation Servo 180° 3.5 kg·cm 400°/s
3212_0 $18.00 Continuous Rotation Servo 12.2 kg·cm 50 RPM