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The MG90S mini digital servo is a 180-degree rotation servo that receives and processes the PWM signal faster and better. It has sophisticated internal circuitry that gives good torque, holding power and faster updates in response to outside forces.
The listing says the servo's optimised performance and reliability have made it a favourite of RC hobbyists, and that it is packed in a tight, sturdy plastic case that makes it water and dust resistant, useful in RC planes, boats and monster trucks.
It has a 3-wire JR servo plug, which is compatible with Futaba connectors too, and this listing's product name mentions a 1m wire with a 3-pin female RMC connector.
High resolution: fine, accurate positioning.
Durable metal gear design: handles shocks better than plastic.
Excellent holding power: stays where it is commanded.
Fast control response: digital signal processing.
Constant torque: throughout the servo travel range.
JR servo plug: compatible with Futaba connectors.
Sturdy case: water and dust resistance.
A hobby servo combines a small motor, a gearbox and a position sensor with control electronics. You send it a pulse every 20 milliseconds or so, and the width of the pulse tells it where to go: about 1.5 milliseconds is centre, with roughly 1.0 and 2.0 milliseconds at the ends. The servo drives its output shaft until the sensor says it has reached the commanded position, then holds it against the load.
Digital servos process the signal with a microcontroller and drive the motor at a much higher rate than analogue servos, which gives faster response, a smaller dead band and stronger holding torque. Metal gears cope better with shock loads than plastic ones, and ball bearings keep the shaft smooth and reduce wear.
Always power a servo from a supply that can deliver its peak current, not from a weak receiver port, and keep the linkage free so the servo never strains against a mechanical stop. A stalled servo draws a large current and can overheat within seconds.
RC planes, boats and monster trucks
Small robots and robot arms
Arduino and hobby electronics projects
Micro aircraft control surfaces
Replacement servo for models
The specification list gives a model of MG90S, an operating temperature of 0 to 55 degrees C, an operating voltage of 4.8 to 6.6V, metal gears, a JR servo plug and a rotation range of 180 degrees.
The package contains one MG90S servo motor. The listing does not state the servo's weight or torque, so check the seller if these matter for your build.
Model: MG90S
Operating temperature: 0 to 55 C
Operating voltage: 4.8-6.6V
Gear type: metal
Servo plug: JR
Rotation range: 180 degrees
1 x MG90S servo motor
RC and robotics hobbyists who want a small metal-gear 180-degree servo.
180 degrees.
Metal.
4.8 to 6.6V.
A JR 3-wire plug, compatible with Futaba.
The listing says the case is water and dust resistant.
One MG90S servo motor.
| Brand | Generic |
|---|---|
| Connector | 3-Pin Female RMC |
| Operating Temperature | 0 to 55 C |
| Operating Voltage | 4.8-6.6V |
| Servo Plug Type | JR |
| Selling unit | PCS |
