HSB-9381TH Servo

With ultra-efficient brushless motors, titanium gear trains, low current consumption and constant output power, the full metal case HSB-9381TH is the perfect match for the most demanding radio control pilots and racers.

How Far Will This Servo Rotate?

The answer to this question is partially dependant on what you are using to control the servo.
Click for a quick video explanation.

Stock:

With an Average Radio System:
89°
Your average transmitter and receiver will output a relativly narrow PWM signal range.

Radio System + Servo Stretcher:
158°
Adding a Servo Stretcher to your radio system setup will allow you to achieve wide PWM signal ranges.

Wide Signal Controllers:
158°
Controllers such as the Actobotics® Servo Controller, Arduinos, and Raspberry Pi servo hats can usually send a wide signal.

Reprogrammed:

Whether you purchase the reprogrammed option or get a servo programmer and do it yourself, a reprogrammed version of this servo will be able to achieve greater travel than it can in stock form.

With an Average Radio System:
111°
Your average transmitter and receiver will output a relativly narrow PWM signal range.

Radio System + Servo Stretcher:
198°
Adding a Servo Stretcher to your radio system setup will allow you to achieve wide PWM signal ranges.

Wide Signal Controllers:
198°
Controllers such as the Actobotics® Servo Controller, Arduinos, and Raspberry Pi servo hats can usually send a wide signal.

Features

  • Programmable 12-Bit PWM Digital Amplifier
  • Custom Long Life Brushless Motor
  • 1M Cycle Long Life Potentiometer
  • Constant Output Torque
  • Wide Operating Voltage (5 ~ 9 Volts DC)
  • Dual Ball Bearing Supported Output Shaft
  • Dust Resistant and Splash Proof Case
  • 25-Tooth Output Spline
  • Hybrid Nylon Reinforced Plastic and Aluminum Case

Programmable Features

  • End Point Adjustments
  • Direction
  • Fail Safe
  • Dead Band
  • Speed (Slower)
  • Soft Start Rate
  • Data Save / Load
  • Program Reset (From File)

Tech Tips

Specs

Output Shaft Style H25T Spline
Voltage Range 6.0 V - 7.4 V
No-Load Speed (7.4V) 0.14 sec/60°
No-Load Speed (6.0V) 0.17 sec/60°
Stall Torque (7.4V) 472 oz-in (34 kg.cm)
Max PWM Signal Range 700-2300 μsec
Travel per µs (Stock) 0.099°/μsec
Max Rotation (Stock) 158°
Pulse Amplitude 3-5 V
Operating Temperature -20°C to +60°C
Continuous Rotation Modifiable No
Direction w/ Increasing PWM Signal Clockwise
Deadband Width 1 µs
Motor Type Brushless
Feedback Style 5KΩ Potentiometer
Output Shaft Support Dual Ball Bearing
Gear Material Titanium
Wire Length 13" (330.2 mm)
Weight 2.4 oz (68 g)
Wire Gauge 20 AWG
Max Rotation (reprogrammed) 198°
Travel per µsec (reprogrammed) 0.124°/μsec
Servo Size Standard

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