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HS-311 Servo

  • HS-311 with quarter for scale
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The HS-311 sport servo provides the novice modeler all the performance and reliability you would expect to find in a more expensive servo. Combined with precise resin gears and SMT circuitry, the HS-311 represents a remarkable value in today's R/C market.

Standard Servo Schematic 2 A = .780” (19.82mm)
B = .530” (13.47mm)
C = 1.33” (33.79mm)
D = .400” (10.17mm)
E = .380” (9.66mm)
F = 1.19” (30.22mm)
G = .460” (11.68mm)
H = 1.05” (26.67mm)
J = 2.08” (52.84mm)
K = .368” (9.35mm)
L = .172” (4.38mm)
M = 1.57” (39.88mm)
X = .120” (3.05mm)
Dimensions 1.57" x 0.78" x 1.43" (39.88 x 19.81 x 36.32mm)
Product Weight 1.52oz (43g)
Output Shaft Style 24 tooth (C1) spline
Voltage Range 4.8V - 6.0V
No-Load Speed (4.8V) 0.19sec/60°
No-Load Speed (6.0V) 0.15sec/60°
Stall Torque (4.8V) 42 oz/in (3.0 kg/cm)
Stall Torque (6.0V) 51 oz/in (3.7 kg/cm)
Max PWM Signal Range (Standard) 575-2460μsec
Travel per µs (out of box) .107°/μsec
Max Travel (out of box) 202.5°
Pulse Amplitude 3-5V
Operating Temperature -20°C to +60°C
Current Drain - idle (4.8V) 7.4mA
Current Drain - idle (6.0V) 7.7mA
Current Drain - no-load (4.8V) 160mA
Current Drain - no-load (6V) 180mA
Continuous Rotation Modifiable Yes
Direction w/ Increasing PWM Signal Clockwise
Deadband Width 5µs
Motor Type Cored
Potentiometer Drive 4 Slider/Direct Drive
Feedback Style 5KΩ Potentiometer
Output Shaft Support Top Resin Bushing
Gear Type Straight Cut Spur
Gear Material Nylon
Wire Length 11.81" (300mm)
Wire Gauge 25AWG

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