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Technical Specifications
Last Updated: 2026-09-09| Identity | |
| Brand |  |
| Product Number | 31075S |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
114.00 oz-in
8.21 kg-cm
0.8 N-m
4.8V
92.00 oz-in
6.62 kg-cm
0.6 N-m
Below Average
|
| Speed |
6.0V
0.34 sec/60°
176.5 deg/s
29.4 RPM
4.8V
0.45 sec/60°
133.3 deg/s
22.2 RPM
Bottom 10%
|
| Running Current |
6.0V
180.000 A
180,000 mA
4.8V
150.000 A
150,000 mA
|
| Stall Current | ≤1 A≤1000 mATop 10% |
| Physical | |
| Weight | 1.23 oz34.9 gAverage |
| Dimensions |
L 1.73 in W 0.90 in H 0.98 in L 43.9 mm W 22.9 mm H 24.9 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | 3-pole |
| Gears | Nylon |
| Gear Spline/Teeth | 24 T estimate |
| Rotation/Support | Single Bearing |
| Control & Signal | |
| Modulation | Analog |
| Direction | Clockwise |
| Rotational Range | 170° |
| Mechanical Limit | 180° |
| Pulse Cycle | 20 ms |
| Pulse Width | 1400-1600 µs |
| Neutral Position | 1500 µs |
| Dead Band | 20 µs |
| Angle Sensor | Indirect Switch Drive |
| Control System | PWM |
| Signal Voltage | 3-5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Power Source | Direct |
| Regulator Type | Direct |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | IP54 |
| Idle Current | 0.001 A1 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 in |
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.
Class Comparison
| Torque | Below Average Stronger than 19% of 151 Low Profile servos at 4.8V |
| Speed | Bottom 10% Faster than 5% of 150 Low Profile servos at 4.8V |
| Weight | Average Lighter than 36% of 54 Analog Low Profile servos |
| Stall Current | Top 10% Lower draw than 94% of 50 Low Profile servos |
Performance Analysis
| Shaft Power | 0.38–0.62 W |
| Power Density | 0.406 W/in³ More power-dense than 35% of 52 Analog Low Profile servos |
| Torque Density | 2.6361 oz-in/g Stronger than 70% of 125 Hitec servos |
| Torque-to-Volume Ratio | 60.29 oz-in/in³ Denser torque than 45% of 125 Hitec servos |
| Speed-to-Weight | 0.06367 (1/sec·g) Faster than 19% of 125 Hitec servos |
| Speed-Torque Trade-off | 41.41 Better balanced than 71% of 125 Hitec servos |
| Current-per-Torque Ratio | 0.0109 A/oz-in 3rd-highest current-per-torque ratio of 58 Hitec servos |
| Idle-to-Running Current Ratio | 0.000 1st-highest idle-to-running current ratio of 38 Hitec servos |
| No-Load vs Stall Current Spread | 0.01 5th-highest no-load vs stall current spread of 33 Hitec servos |
| Torque Gain per Volt | 19.93%/V More voltage-responsive (torque) than 61% of 115 Hitec servos |
| Speed Gain per Volt | 27.01%/V More voltage-responsive (speed) than 96% of 115 Hitec servos |
| Voltage Range Width | 1.2 V Wider voltage range than 68% of 26 Analog Low Profile servos |
| Dead-Band-to-Pulse-Width Ratio | 0.1000 Finer dead band than 0% of 70 Hitec servos |
Notes
This servo is not positional but moves slowly from one end of the operating range to the other without interruption.
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Reviews (6)
-
speed2004
February 12, 2026Application(s): retracts
Comments: Price in 2026 is now 34.95
Roger507
September 24, 2017Application(s): 46 airplane retract servo
Comments: I have had 4 of them and all have failed. Smoke burned an d just short out. Junk
Austin
August 17, 2017Application(s): tc3
Comments: Doesn't fit in my tc3 chassis and when I plug it in it doesn't even work
Giorgio
June 17, 2017Application(s): retracts
Comments: Works very well with 4 elements battery , but with 5 elements (more than 6 volts) doesn't work at all.
Conquest
December 7, 2015Application(s): Classic Pattern Airplane
Comments: Use this servo for my main MK retracts in my Classic Pattern Plane. Flawless. Never had a failure. Set them up properly and they will serve you well. Remember, these servos run 180 degrees and stop. Gear is up or gear is down, nothing in between.
Rafas
August 14, 2014Application(s): The retractable gear P47 / thunderbolt hangar 9 .60
Comments: Bad experience, just run a flight, US $ 30 down the drain