Product Description The metal D-645MW is part of our D-Series servo line. All Hitec D-Series servos have been designed using our brand new, cutting edge, custom engineering. Combining industry leading high-resolution, state-of-the-art ultra-response technology with a 32-bit MCU and 12-bit ADC for unprecedented programmability and flexibility, these servos deliver significantly smoother movement. The speedy, powerful line operates on a wide 4.8 ~ 8.4 voltage range, allowing use with any common battery chemistry without the need for adapters or regulators. Featuring Hitec’s industry standard 25-tooth output spline with 3mm hex screw, each D-Series servo brings monster performance never known before in the market. Features Programmable PWM Digital Amplifier 32-Bit MCU with 12-Bit ADC Circuitry 4096 Resolution 1M Cycle Long Life Potentiometer Wide Operating Voltage (4.8 ~ 8.4 Volts DC) Dual Ball Bearing Supported Output Shaft 25-Tooth Output Spline Programmable Functions End Point Adjustments Direction Fail Safe Dead Band Speed (Slower) Soft Start Rate Overload Protection Data Save / Load Program Reset D645MW Servo Specifications Performance Specifications Operating Voltage Range (Volts DC) 4.8V ~ 6.0V ~ 7.4V Speed (Second @ 60°) 0.28 ~ 0.20 ~ 0.17 Maximum Torque Range oz. / in. 115 ~ 158 ~ 180 Maximum Torque Range kg. / cm. 8.3 ~ 11.3 ~ 12.9 Current Draw at Idle 30 mA No Load Operating Current Draw 500 mA Stall Current Draw 2,650 mA Dead Band Width 2 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) 2.11 Weight (Gram) 57.0 Circuit Type 32bit Programable Digital Motor Type 3 Pole Metal Brush Ferrite Gear Material Metal Bearing Type Dual Ball Bearing Output Shaft (type / Ømm) H25T Case Material Plastic Dust / Water Resistance N / A Connector Gauge (AWG) / Strand Count 22 / 60
