HS-45HB Servo

Hitec’s HS-45HB offers the economy and durability of their other famous sub-micro servos, but now with a ball bearing supported output shaft and Karbonite gears.

How Far Will This Servo Rotate?

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

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

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

Wide Signal Controllers:
Controllers such as the Servo Commander, Arduinos, and Raspberry Pi servo hats can usually send a wide signal.

Tech Tips


Output Shaft Style A15T Spline
Voltage Range 4.8V - 6.0V
No-Load Speed (4.8V) 0.14 sec/60°
No-Load Speed (6.0V) 0.12 sec/60°
Stall Torque (4.8V) 13.88 oz-in.
Stall Torque (6.0V) 17 oz-in.
Max PWM Signal Range 790-2405 μsec
Travel per µs .118°/μsec
Max Rotation 191°
Pulse Amplitude 3-5V
Operating Temperature -20°C to +60°C
Current Drain - idle (4.8V) 8mA
Current Drain - no-load (4.8V) 100mA
Continuous Rotation Modifiable No
Direction w/ Increasing PWM Signal Clockwise
Deadband Width 8µs
Motor Type 3 Pole Ferrite
Feedback Style 5KΩ Potentiometer
Output Shaft Support Top Ball Bearing
Gear Material Karbonite
Wire Length 6.29" (160mm)
Weight 0.28oz (8g)
Wire Gauge 28AWG
Servo Size Sub-Micro

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