Hitec MD89MW Metal Gear Digital Servo
The compact MD89MW-DroneCAN is a 13mm, metal gear, sub 1 oz micro servo with dual ball bearings, coreless metal brushed motor, and contactless magnetic encoder. This discrete package offers high performance and reliability for robotic and remote, unmanned aerial applications where space and weight are at a premium. Operating via PWM control at a wide voltage range from 4.8~7.4 volts, the unique MD89MW actuator produces impressive performance, with ultra torque and speed numbers equal to servos weighing twice as much from just a few years ago.
Hitec's MD89MW Metal Gear Digital Servo delivers high performance with a lightweight design
Hitec MD89MW Metal Gear Digital Servo Features
- High Resolution 32-bit Programmable PWM Digital Circuit
- PWM & TTL Protocol Capability
- Magnetic Encoder Position Sensor
- Wide Operating Voltage (3.5 ~ 8.4V)
- Heavy-Duty, Long Life Motors
- IP-4X Rated Cases
- 25 Tooth Output Shaft
Hitec MD89MW Metal Gear Digital Servo Diagram
Programmable Functions
- End Point Adjustments
- Direction
- Fail Safe
- Dead Band
- Speed (Slower)
- Soft Start Rate
- Overload Protection
- Data Save / Load
- Program Reset
Hitec MD89MW Metal Gear Digital Servo Specs
Control System
| PWM / TTL (Half Duplex) |
Position Sensor Type
| Contactless Magnetic Encoder |
Motor Type
| Coreless |
Operating Voltage Range
| 3.5 ~ 8.4V |
Voltage | 4.8V | 6.0V | 7.4V |
No Load Speed | 0.17sec/60˚ | 0.13sec/60˚ | 0.11sec/60˚ |
Stall Torque | 5.3kgf·cm (73.6 oz·in) | 6.4kgf·cm (88.88oz·in) | 8.5kgf·cm (118.04oz·in) |
Peak Efficiency Torque | 1.1kgf·cm (15.28oz·in) | 1.3kgf·cm (18.05oz·in) | 1.7kgf·cm (23.61oz·in) |
Standing Current | 30mA | 30mA | 30mA |
No Load Running Current | 200mA | 250mA | 300mA |
Stall Current | 1,800mA | 2,200mA | 2,700mA |
Deadband | 1µs | 1µs | 1µs |
Operating Travel
| Default: ±60º, Programmable: Max 320º / Pulse Width: 900~2100μs (Center:1500μs) |
Continuous Rotation
| n/a |
Operating Temperature Range
| -20˚C ~ +60˚C (-4˚F ~+140˚F) |
Storage Temperature Range
| -30˚C ~ +80˚C (-22˚F ~+176˚F) |
Connector Wire Length
| 240mm (9.449 inch) |
Connector Wire Gauge
| 22AWG |
Dimensions | 29.0mm x 13.0mm x 30.0mm (1.142inch x 0.512inch x 1.181inch) |
Weight | 25.5g (0.899oz) Excluding the weight of Horn |
Bearing Type
| 2 Ball Bearing |
Case Material
| Engineering Plastic |
Gear Material | 5 Metal Gears |
Gear Train Backlash | Max 0.5˚ |
Horn Gear Spline | 25T(Ø6) |
IP Rating | IP4X |
Servo Amplifier Type | 32bit programmable Digital |
Package Hitec MD89MW Metal Gear Digital Servo include
- 1* Hitec MD89MW Metal Gear Digital Servo
- 1* Horn
- 1* set of screws and mounting parts
- 1* manual