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 our unique M/P and metal gear train technology, the HS-645MG offers one of the strongest gear trains available in any servo.

Features

• Top Selling High Torque Metal Gear Servo
• Strong Three-Pole Ferrite Motor
• Heavy Duty Metal Gear Train Featuring our Revolutionary Metal/Plastic First Gear (MP Gear)
• Dual Ball Bearing-Supported Output Shaft

Performance Specifications
Operating Voltage Range (Volts DC): 4.8V ~ 6.0V
Speed (Second @ 60°): 0.24 ~ 0.20
Maximum Torque Range oz. / in.: 107 ~ 133
Maximum Torque Range kg. / cm.: 7.7 ~ 9.6
Current Draw at Idle: 9.1 mA
No Load Operating Current Draw: 450 mA
Stall Current Draw: 2,500 mA
Dead Band Width: 8 µs

Physical Specifications
Dimensions (Inches): 1.59 x 0.77 x 1.48
Dimensions (Metric): 40.6 x 19.8 x 37.8
Weight (Ounces): 1.94
Weight (Gram): 55.2
Circuit Type: HT7003 Analog SMT
Motor Type: 3 Pole Metal Brush Ferrite
Gear Material: Metal
Bearing Type: Dual Ball Bearing
Output Shaft (type / Ømm): Standard 24
Case Material: Plastic
Dust / Water Resistance: N / A
Connector Gauge (AWG) / Strand Count: 22 / 60