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HSB-9381TH Full Metal Case, Ultra Torque, Brushless, Titanium Gear Servo

Calculated at checkout

Product Description

Product Description

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. Best of all... Hitec brushless servos maintain their full speed during usage, unlike some that slow down when more force is applied. Torque is also constant at any voltage. 


  • 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
  • Low Power Consumption

Programmable Functions

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


  • 3 Titanium / Steel Gears Set
  • Metal / Plastic / Duralumin Hybrid 1st Gear Set
  • Plastic / Aluminum Case Set
  • Applicable Horns

HSB-9381TH Servo Specifications

Performance Specifications
Operating Voltage Range (Volts DC) 6.0V ~ 7.4V
Speed (Second @ 60°) 0.17 ~ 0.14
Maximum Torque Range oz. / in. 472
Maximum Torque Range kg. / cm. 34
Current Draw at Idle 27 mA
No Load Operating Current Draw 250 mA
Stall Current Draw 2,700 mA
Dead Band Width 1 µs
Physical Specifications
Dimensions (Inches) 1.57 x 0.79 x 1.50
Dimensions (Metric) 40.0 x 20.0 x 38.0
Weight (Ounces) 2.4
Weight (Gram) 72.0
Circuit Type EBL Digital
Motor Type Brushless
Gear Material Titanium
Bearing Type Dual Ball Bearing
Output Shaft (type / Ømm) H25T
Case Material Plastic / Aluminum
Dust / Water Resistance Splash Proof
Connector Gauge (AWG) / Strand Count 20 / 80
Radio Control Applications
Parkflyer N / A
Sport Plane >40%
Sailplane 2 meter and up
3D Performance >40%
Scale >40%
Electric Helicopter N / A
Gas Helicopter N / A
On Road N / A
Monster Truck 1/8th 
Buggies 1/8th 
Truggies 1/8th 
Short Course / Truck 1/8th  
Crawlers Super
Sail Boat = > 1 meter & scale
Power Boat  1/8th

Product Videos

Functions of the Power Absorbing Device (P.A.D.) with your Hitec Brushless Servo. 02:39

This video showcases the benefits of using a P.A.D. (Power Absorbing Device) with your Hitec brushless servo. Our high performance Hitec brushless servos can be ordered through the following link:

  • Functions of t...
    This video showcases the benefits of using a P.A.D. (Power Abs...

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