The compact MDB89MH is a 13mm, metal gear, sub 1 oz micro servo with dual ball bearings, premium brushless 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 3.5 ~ 8.4 volts, the unique MD89MH actuator produces impressive performance spec for its size including 173.59 oz·in at 7.4V of torque and 0.13 sec/60° at 7.4V of speed.
| Performance Specifications | |
| Operating Voltage Range (Volts DC) | 3.5V ~ 8.4V |
| Speed (Second @ 60°) | 0.13 @ 7.4V |
| Maximum Torque Range oz. / in. | 173.59 @ 7.4V |
| Maximum Torque Range kgf. / cm. | 12.5 @ 7.4V |
| Current Draw at Idle | 30mA @ 7.4V |
| No Load Operating Current Draw | 170mA @ 7.4V |
| Stall Current Draw | 3,000mA @ 7.4V |
| Dead Band Width | 2us |
| Physical Specifications | |
| Dimensions (Inches) | 1.142 x 0.512 x 1.339 in. |
| Dimensions (Metric) | 29.0 x 13.0 x 34.0 |
| Weight (Ounces) | 1.185 |
| Weight (Gram) | 33.6 |
| Circuit Type | 32bit Programable Digital |
| Motor Type | Brushless |
| Gear Material | 5 Metal Gears |
| Bearing Type | 2 Ball Bearings |
| Output Shaft (type / Ømm) | 25T(Ø6) |
| Case Material | Engineering Plastic |
| Dust / Water Resistance | IP4X |
| Connector Gauge (AWG) / Strand Count | 22AWG |