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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | HL-3925-C001 |
| Category | Hobby |
| Performance | |
| Torque |
12.0V347.25 oz-in25.00 kg-cm2.5 N-m |
| Speed |
12.0V0.18 sec/60°329.7 deg/s54.9 RPM |
| Running Current |
12.0V0.170 A170 mA |
| Stall Current | ≤2.7 A≤2700 mAAbove Average |
| Physical | |
| Weight | 2.18 oz61.7 gAverage |
| Dimensions |
L 1.583 in W 0.795 in H 1.575 in L 40.2 mm W 20.2 mm H 40.0 mm |
| Drivetrain | |
| Motor Type | Cored |
| Gears | Metal |
| Rotation/Support | Single Bearing |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 360° |
| Control System | TTL |
| Electrical & Environment | |
| Operating Voltage | 9–12.6 V |
| Temperature | -20–60 °C-4–140 °F |
| Origin | |
| Country of Origin | China |
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
| Weight | Average Lighter than 54% of 1902 Digital Standard servos |
| Stall Current | Above Average Lower draw than 69% of 539 Digital Standard servos |
Performance Analysis
| Shaft Power | 3.53 W |
| Power Density | 1.780 W/in³ More power-dense than 38% of 1759 Digital Standard servos |
| Torque Density | 5.6280 oz-in/g |
| Torque-to-Volume Ratio | 175.19 oz-in/in³ |
| Speed-to-Weight | 0.08905 (1/sec·g) |
| Speed-Torque Trade-off | 63.19 |
| Current-per-Torque Ratio | 0.0078 A/oz-in |
| No-Load vs Stall Current Spread | 15.88 |
| Voltage Range Width | 3.6 V Wider voltage range than 85% of 1539 Digital Standard servos |
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