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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 | 31425S |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
57.00 oz-in
4.10 kg-cm
0.4 N-m
4.8V
46.00 oz-in
3.31 kg-cm
0.3 N-m
|
| Speed |
6.0V
0.16 sec/60°
375.0 deg/s
62.5 RPM
4.8V
0.21 sec/60°
285.7 deg/s
47.6 RPM
|
| Running Current |
6.0V
0.180 A
180 mA
4.8V
0.150 A
150 mA
|
| Stall Current | 0.6–0.75 A600–750 mA |
| Physical | |
| Weight | 1.60 oz45.4 g |
| Dimensions |
L 1.59 in W 0.77 in H 1.44 in L 40.4 mm W 19.6 mm H 36.6 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | 3-pole |
| Motor Drive | (add) |
| Gears | Nylon |
| Gear Spline/Teeth | 24 T estimate |
| Shaft Size | 6.0 mm |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Backlash | 0.500° |
| Control & Signal | |
| Modulation | Analog |
| Direction | Clockwise |
| Rotational Range | 80° |
| Mechanical Limit | 188° |
| Pulse Cycle | 20 ms |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1500 µs |
| Dead Band | 5 µs |
| Refresh Rate | 50 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | No |
| 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 | (add) |
| Certification | (add) |
| Idle Current | 0.009 A9 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 in |
| Origin | |
| Country of Origin | Philippines |
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 | 0.41–0.66 W |
| Torque Density | 1.0132 oz-in/g Stronger than 14% of the 156 Analog Standard servos in the database |
| Torque-to-Volume Ratio | 26.09 oz-in/in³ Denser torque than 29% of the 156 Analog Standard servos in the database |
| Power Density | 0.374 W/in³ More power-dense than 26% of the 421 Analog Standard servos in the database |
| Speed-to-Weight | 0.10489 (1/sec·g) Faster than 38% of the 155 Analog Standard servos in the database |
| Speed-Torque Trade-off | 9.66 Better balanced than 32% of the 155 Analog Standard servos in the database |
| Current-per-Torque Ratio | 0.0163 A/oz-in More efficient than 67% of the 43 Analog Standard servos in the database |
| Idle-to-Running Current Ratio | 0.060 Lower idle draw than 38% of the 33 Standard servos in the database |
| No-Load vs Stall Current Spread | 5.00 Narrower current spread than 72% of the 55 Standard servos in the database |
| Torque Gain per Volt | 19.93%/V More voltage-responsive (torque) than 73% of the 120 Analog Standard servos in the database |
| Speed Gain per Volt | 26.05%/V 5th-highest speed gain per volt of 121 Analog Standard servos |
| Voltage Range Width | 1.2 V Wider voltage range than 61% of the 185 Analog Standard servos in the database |
| Backlash-to-Range Ratio | 0.00625 Tighter backlash than 13% of the 24 Hobby servos in the database |
| Dead-Band-to-Pulse-Width Ratio | 0.0042 Finer dead band than 42% of the 37 Analog Standard servos in the database |
Quick Actions
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Reviews (2)
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matt175
February 19, 2014Application(s): used for throttle servo in my 26cc 1/4 cracker box boat.
Comments: the servo work good enough for the throttle. Brand new out of the shipping box i noticed it has about 1mm of play in the gears before it was ever used. I will see how it performs over the summer and post back if it gets any worst.
hobbyaire
December 1, 2010Application(s): .40 size trainer airplane
Comments: Pros: Extremely reliable and durable, inexpensive
Cons: a bit slower than the comparable Futaba S3004