Hi-Tec HS 645 MG
The powerful HS-645MG is one of Hitec’s most popular servos. It’s the perfect choice for those larger sport planes or monster trucks and buggies requiring a durable high torque servo. Featuring their unique M/P and metal gear train technology, the HS-645MG offers one of the strongest gear trains available in any servo.
| Dimensions | 1.59" x 0.77"x 1.48" (40.6 x 19.8 x 37.8mm) |
|---|---|
| Product Weight | 1.94oz. (55.2g) |
| Output Shaft Style | 24 tooth (C1) spline |
| Voltage Range | 4.8V - 6.0V |
| No-Load Speed (4.8V) | 0.24sec/60° |
| No-Load Speed (6.0V) | 0.20sec/60° |
| Stall Torque (4.8V) | 106.93 oz/in. (7.7kg.cm) |
| Stall Torque (6.0V) | 133.31 oz/in. (9.6kg.cm) |
| Max PWM Signal Range (Standard) | 553-2520μsec |
| Travel per µs (out of box) | .100°/μsec |
| Max Travel (out of box) | 197° |
| Pulse Amplitude | 3-5V |
| Operating Temperature | -20°C to +60°C |
| Current Drain - idle (4.8V) | 8.8mA |
| Current Drain - idle (6.0V) | 9.1mA |
| Current Drain - no-load (4.8V) | 350mA |
| Current Drain - no-load (6V) | 450mA |
| Continuous Rotation Modifiable | Yes |
| Direction w/ Increasing PWM Signal | Clockwise |
| Deadband Width | 8µs |
| Motor Type | 3 Pole Ferrite |
| Potentiometer Drive | Indirect Drive |
| Internal Feedback Style | 5KΩ Potentiometer |
| Output Shaft Support | Dual Ball Bearings |
| Gear Type | Straight Cut Spur |
| Gear Material | 3 Metal Gears and 1 Resin Metal Gear |
| Wire Length | 11.81" (300mm) |
| Wire Gauge | 22AWG |