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HS-645MG Ultra Torque Servo

HS-645MG Ultra Torque Servo
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The HS-645MG is one of our favorite servos of all time. We use this servo for all types of robotic applications and industrial products. The reliability and performance that you get for under $40 is fantastic. Metal gears, dual ball bearings, seperated motor and circuit board make the HS-645MG a top choice whether your project is robotics, aircraft, cars or trucks. 


Control System: +Pulse Width Control 1500usec Neutral
Required Pulse: 3-5 Volt Peak to Peak Square Wave
Operating Voltage: 4.8-6.0 Volts
Operating Temperature Range: -20 to +60 Degree C
Operating Speed (4.8V): 0.24sec/60° at no load
Operating Speed (6.0V): 0.20sec/60° at no load
Stall Torque (4.8V): 106.93 oz/in. (
Stall Torque (6.0V): 133.31 oz/in. (

Operating Angle: 45 Deg. one side pulse traveling 400usec

Continuous Rotation Modifiable: Yes
Direction: Clockwise/Pulse Traveling 1500 to 1900usec
Current Drain (4.8V): 8.8mA/idle and 350mA no load operating
Current Drain (6.0V): 9.1mA/idle and 450mA no load operating
Dead Band Width: 8usec
Motor Type: 3 Pole Ferrite
Potentiometer Drive: Indirect Drive
Bearing Type: Dual Ball Bearing
Gear Type: 3 Metal Gears and 1 Resin Metal Gear
Connector Wire Length: 11.81" (300mm)
Dimensions: 1.59" x 0.77"x 1.48" (40.6 x 19.8 x 37.8mm)
Weight: 1.94oz. (55.2g)

SKU KRS-19216
Stock Out of Stock
Ships No Date Available.
Weight 6.00 oz
Price: $31.49
Qty Out of stock
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