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HS-81MG Servo Motor

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HS-81MG Standard Micro Servo


The HS-81 and HS-81MG are among Hitec's most popular servos. Available in both resin and metal gear versions. With a fine balance between speed and torque, the HS-81s were designed to be both economical and reliable.


 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): 0.11sec/60 degrees at no load
 Operating Speed (6.0V): 0.09sec/60 degrees at no load
 Stall Torque (4.8V): 36.10 oz/in. (2.6kg.cm)
 Stall Torque (6.0V): 41.66 oz/in. (3kg.cm)
 Operating Angle: 40 Deg. one side pulse traveling 400usec
 360 Modifiable: No
 Direction: Clockwise/Pulse Traveling 1500 to 1900usec
 Current Drain (4.8V): 8.8mA/idle and 220mA no load operating
 Current Drain (6.0V): 9.1mA/idle and 280mA no load operating
 Dead Band Width: 8usec
 Motor Type: 3 Pole Ferrite
 Potentiometer Drive: Direct Drive
 Bearing Type: None, outer case serves as bearing
 Gear Type: 4 Metal and 1 Nylon
 Connector Wire Length: 6.29" (160mm)
 Dimensions: 1.17" x 0.47"x 1.16" (29.8 x 112 x 29.6mm)
 Weight: 0.62oz (17g)

Operating Speed: 0.09sec/60o at 4.8V
Output Torque: 0.6kg/cm (8.4 oz/in) at 4.8V
Size: 20.9 x 11.4 x 22 mm (0.82 x 0.44 x 0.87 in)
Weight:  5.8g (0.2 oz)

HS-81MG - $23.50
Standard Micro Servo

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