Discover XQ-Power Servos in Our eBay Store!

Shop Now
Hitec HS-635HB
Standard Discontinued

Hitec HS-635HB

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-09-14
Identity
Brand Hitec
Product Number 33635S
Category Hobby
Discontinued Yes
Performance
Torque
6.0V 83.00 oz-in
4.8V 69.00 oz-in
Speed
6.0V 0.15 sec/60°
4.8V 0.18 sec/60°
Running Current (add)
Stall Current 2–2.5 A
Physical
Weight 1.76 oz
Dimensions L 1.59 in
W 0.77 in
H 1.52 in
Case Material (add)
Drivetrain
Motor Type 3-pole
Motor Drive MOS
Gears Plastic
Gear Spline/Teeth 24 T
Shaft Size 5.8 mm
Rotation Mode Positional
Rotation/Support Dual Bearings
Backlash (add)
Control & Signal
Modulation Analog
Direction Clockwise
Rotational Range 80°
Mechanical Limit (add)
Pulse Cycle 20 ms
Pulse Width 900-2100 µs
Neutral Position 1500 µs
Dead Band 5 µs
Refresh Rate (add)
Angle Sensor Potentiometer
Control System PWM
Programmable No
Signal Voltage (add)
Electrical & Environment
Operating Voltage 4.8–6 V
Power Source (add)
Regulator Type (add)
Temperature -20–60 °C
Water Rating (add)
Certification (add)
Idle Current 0.008 A
Connectivity
Connector S
Wire Length 300 mm
Origin
Country of Origin (add)

Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.

Performance Analysis

Shaft Power 0.71–1.02 W
Torque Density1.3828 oz-in/g
Stronger than 37% of the 156 Analog Standard servos in the database
Torque-to-Volume Ratio37.08 oz-in/in³
Denser torque than 43% of the 156 Analog Standard servos in the database
Power Density0.550 W/in³
More power-dense than 46% of the 421 Analog Standard servos in the database
Speed-to-Weight0.11133 (1/sec·g)
Faster than 48% of the 155 Analog Standard servos in the database
Speed-Torque Trade-off12.42
Better balanced than 45% of the 155 Analog Standard servos in the database
Current-per-Torque Ratio0.0362 A/oz-in
More efficient than 10% of the 43 Analog Standard servos in the database
Torque Gain per Volt16.91%/V
More voltage-responsive (torque) than 62% of the 120 Analog Standard servos in the database
Speed Gain per Volt16.68%/V
More voltage-responsive (speed) than 63% of the 121 Analog Standard servos in the database
Voltage Range Width1.2 V
Wider voltage range than 58% of the 185 Analog Standard servos in the database
Dead-Band-to-Pulse-Width Ratio0.0042
Finer dead band than 36% of the 37 Analog Standard servos in the database

Similar Active Servos

Reviews (1)

  • Thomas

    December 8, 2010

    Application(s): 30 Size Nitro

    Comments: 5 stars for price and performance.
    Got the extra torque that you need.
    Been using it on my caliber 3's tail.
    Got the torque but not the speed for the tail though.
    Have had 100 + flights and works great.
    Has got Carbonite gears , so wear and tear on gear train is minimal.

Submit a review of Hitec HS-635HB