Discover XQ-Power Servos in Our eBay Store!
Shop Now
Technical Specifications
Last Updated: 2026-09-16| Identity | |
| Brand |  |
| Product Number | 31225S |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
67.00 oz-in
4.82 kg-cm
0.5 N-m
4.8V
54.00 oz-in
3.89 kg-cm
0.4 N-m
Above Average
|
| Speed |
6.0V
0.11 sec/60°
545.5 deg/s
90.9 RPM
4.8V
0.14 sec/60°
428.6 deg/s
71.4 RPM
Average
|
| Running Current |
6.0V
0.360 A
360 mA
4.8V
0.260 A
260 mA
Below Average
|
| Stall Current | ≤1.2 A≤1200 mAAverage |
| Physical | |
| Weight | 0.95 oz26.9 gBelow Average |
| Dimensions |
L 1.27 in W 0.66 in H 1.22 in L 32.3 mm W 16.8 mm H 31.0 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | 3-pole |
| Gears | Plastic |
| Gear Spline/Teeth | 25 T estimate |
| Shaft Size | 6.0 mm |
| Rotation Mode | Positional |
| Rotation/Support | Single Bearing |
| Backlash | 0.500° |
| Control & Signal | |
| Modulation | Analog |
| Rotational Range | 80° |
| Pulse Cycle | 20 ms |
| Pulse Width | 900-2100 µs |
| Dead Band | 8 µs |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | No |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | -20–60 °C-4–140 °F |
| Idle Current | 0.008 A8 mA |
| Connectivity | |
| Connector | S |
| 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.
Class Comparison
| Torque | Above Average Stronger than 85% of 75 Analog Mini servos at 4.8V |
| Speed | Average Faster than 57% of 75 Analog Mini servos at 4.8V |
| Weight | Below Average Lighter than 19% of 155 Analog Mini servos |
| Running Current | Below Average Lower draw than 35% of 50 Mini servos at 4.8V |
| Stall Current | Average Lower draw than 58% of 27 Analog Mini servos |
Performance Analysis
| Shaft Power | 0.71–1.13 W |
| Power Density | 1.101 W/in³ More power-dense than 76% of 153 Analog Mini servos |
| Torque Density | 2.0074 oz-in/g Stronger than 57% of 75 Analog Mini servos |
| Torque-to-Volume Ratio | 52.81 oz-in/in³ Denser torque than 54% of 75 Analog Mini servos |
| Speed-to-Weight | 0.26553 (1/sec·g) Faster than 27% of 75 Analog Mini servos |
| Speed-Torque Trade-off | 7.56 Better balanced than 74% of 75 Analog Mini servos |
| Current-per-Torque Ratio | 0.0222 A/oz-in More efficient than 48% of 81 Hitec servos |
| Idle-to-Running Current Ratio | 0.031 Lower idle draw than 63% of 61 Hitec servos |
| No-Load vs Stall Current Spread | 4.62 Narrower current spread than 87% of 56 Hitec servos |
| Torque Gain per Volt | 20.06%/V 3rd-highest torque gain per volt of 55 Analog Mini servos |
| Speed Gain per Volt | 22.73%/V More voltage-responsive (speed) than 89% of 55 Analog Mini servos |
| Voltage Range Width | 1.2 V Wider voltage range than 80% of 85 Analog Mini servos |
| Backlash-to-Range Ratio | 0.00625 Tighter backlash than 7% of 43 Hitec servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0067 Finer dead band than 21% of 20 Analog Mini servos |
Similar Active Servos
Reviews (24)
Includes 22 reviews aggregated from around the web.
Owners rate this small ball-bearing mini servo very highly; buyer ratings on a large retailer listing average about 4.6 out of 5 across dozens of ratings, and every written review found is positive. Buyers call it a good-quality, very good servo for its size, use it as an elevator servo in small planes and in pylon racers (one has used them for years), and note it is easy to convert to continuous rotation. RC forum users add that many people run it in a wide variety of applications with little drama. Its nylon gear train is the known limit, so it suits sport and general use better than heavy loads. Complaints are rare.
-
Willettfx
January 1, 2016Application(s): Animatronics
Comments: Great servo have 8 of them. Prices $17 each.
GT
May 1, 2015Application(s): .25 to .40 glow all surfaces
Comments: Fantastic servo for medium size glow use. I do use at 6 volt.