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Technical Specifications
Last Updated: 2026-09-14Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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| Identity | |
| Brand |  |
| Product Number | 31605S |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
94.40 oz-in
6.80 kg-cm
0.7 N-m
4.8V
76.40 oz-in
5.50 kg-cm
0.5 N-m
|
| Speed |
6.0V
0.13 sec/60°
461.5 deg/s
76.9 RPM
4.8V
0.17 sec/60°
352.9 deg/s
58.8 RPM
|
| Running Current | (add) |
| Stall Current | (add) |
| Physical | |
| Weight | 1.73 oz49.0 g |
| Dimensions |
L 1.59 in W 0.77 in H 1.57 in L 40.4 mm W 19.6 mm H 39.9 mm |
| Case Material | (add) |
| Drivetrain | |
| Motor Type | 3-pole |
| Motor Drive | (add) |
| Gears | Plastic |
| Gear Spline/Teeth | 24 T estimate |
| Shaft Size | (add) |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Analog |
| Direction | Clockwise |
| Rotational Range | 90° |
| Mechanical Limit | (add) |
| Pulse Cycle | 20 ms |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1500 µs |
| Dead Band | 8 µs |
| Refresh Rate | (add) |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | (add) |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | (add) |
| Certification | (add) |
| Idle Current | 0.008 A8 mA |
| Connectivity | |
| Connector | (add) |
| Wire Length | 300 mm11.81 in |
| 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 | 0.83–1.34 W |
| Torque Density | 1.5592 oz-in/g Stronger than 46% of the 156 Analog Standard servos in the database |
| Torque-to-Volume Ratio | 39.75 oz-in/in³ Denser torque than 48% of the 156 Analog Standard servos in the database |
| Power Density | 0.699 W/in³ More power-dense than 62% of the 421 Analog Standard servos in the database |
| Speed-to-Weight | 0.12005 (1/sec·g) Faster than 60% of the 155 Analog Standard servos in the database |
| Speed-Torque Trade-off | 12.99 Better balanced than 49% of the 155 Analog Standard servos in the database |
| Torque Gain per Volt | 19.63%/V More voltage-responsive (torque) than 71% of the 120 Analog Standard servos in the database |
| Speed Gain per Volt | 25.64%/V More voltage-responsive (speed) than 96% of the 121 Analog Standard servos in the database |
| Voltage Range Width | 1.2 V Wider voltage range than 59% of the 185 Analog Standard servos in the database |
| Dead-Band-to-Pulse-Width Ratio | 0.0067 Finer dead band than 11% of the 37 Analog Standard servos in the database |
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Reviews (2)
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Chris
December 2, 2016Application(s): These servos are unlike the typical servo, they have Properly Shimed Helical Gears. These servos have Ball Bearing inside. My servo stopped working but the mounts were still good, so i pulled the gears and stuck them into a ha-422 that had broken mounts from a an old crash... just letting you know that this works the helical gears fit into a 422.
Comments: Being that I have servos that could just about break this servo in half... i give it a 4 because of the cool helical gearing.
LASER200
May 10, 2016Application(s): USE THEM IN 40% LASER ON ALE. AND ELE. BEEN BUYING THEM SINCE 1998 NEVER HAD A FAILURE
Comments: HITEC ARE GREAT SERVOS