Detailed Specifications

Control System: +Pulse Width Control 1500usec Neutral
Required Pulse: 3-5 Volt Peak to Peak Square Wave
Operating Voltage Range: 4.8-7.4 Volts
Operating Temperature Range: -20 to +60 Degree C (-4F to +140F)
perating Speed (4.8V): 0.18 sec/60 at no load
Operating Speed (6.0V): 0.15 sec/60 at no load
Operating Speed (7.4V): 0.12 sec/60 at no load
Stall Torque (4.8V): 275oz/in. (
Stall Torque (6.0V): 333oz/in. (
Stall Torque (7.4V): 403oz/in. (
Operating Angle:
45 Deg. one side pulse traveling 400usec
Continuous Rotation Modifiable: Yes
Clockwise/Pulse Traveling 1500 to 1900usec
Dead Band Width:
Motor Type:
Coreless Carbon Brush
Potentiometer Drive:
6 Slider Indirect Drive
Bearing Type:
Dual Ball Bearing MR106
Gear Type:
Steel Gears
Connector Wire Length:
7" (178mm)
1.57" x 0.78"x 1.45" (40 x 20 x 37mm)
2.40oz (68g)











 403 oz-in.


 0.12 sec/60

*Digital servos do not need to be programmed to operate. They work great right out of the box and purchasing a programmer is not necessary.

HS-7954SH Hardware Set

Programable Features:
- Dead Band Width
- Direction of Rotation
- Speed of Rotation (slower)
- End Points (up to 180 degrees)
- Neutral Points
- Fail Safe On/Off
- Fail Safe Points
- Resolution (default is set at high)
- Overload Protection (default is off)

Digital Servo FAQ

Introducing the next generation Ultra performance servos from Hitec. The "Ultra Torque" HS-7954SH features our second generation "G2" programmable digital circuit, steel gear set, heatsink case, and ultra power coreless motor making it arguably one of the best R/C servos ever produced!  This new circuit has twice the resolution of our original circuit while adding programmable overload protection. The HS-7954SH has been designed for the most demanding hobby applications including the largest aircraft and monster trucks. Featuring a titanic 402oz./in. of torque at 7.4 volts, all this power is harnessed by incorporating steel gears for great durability and two strong hardened steel gear pins and axial brass bushing mounted in the servo case. We offer the HS-7954SH servo in several configurations, 90 stock rotation, 180 modified rotation, continuous rotation (potentiometer is left outside the servo case) and reverse rotation.

HS-7950TH hardware
HS-7950TH gears
HS-7950TH circuit board

New G2 circuit board

Steel Gears

Steel Output Spline

Gold-Plated Connector

HS-7954SH back
HS-7954SH Servo

This servo can be configured to operate 180 by using any of the following servo programmers:
Hitec HFP-25, HPP-21, HPP-21+

Servo Programmability
C1 Hitec Spline2

Click for more information

Uses C1 Standard Spline

General Servo Information

More Info

What is a servo

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How servos work

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what servo to use

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Servo Power and Speed

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Rotation Direction

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Connector Types

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180 rotation

More Info

Continuous Rotation
Conversion Calculators - Click Here

Hitec Servo Accessories

Click on the picture for further information.

Servo Screws

Servo Hardware

Servo Extensions

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Hitec Casesets

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ServoCity® is a registered trademark of Robotzone, LLC.

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HS-7954SH Servo
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