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Technical Specifications
Last Updated: 2026-10-24
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | H25 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
416.70 oz-in
30.01 kg-cm
2.9 N-m
7.4V
347.25 oz-in
25.00 kg-cm
2.5 N-m
6.0V
298.64 oz-in
21.50 kg-cm
2.1 N-m
Above Average
|
| Speed |
8.4V
0.07 sec/60°
882.4 deg/s
147.1 RPM
7.4V
0.08 sec/60°
800.0 deg/s
133.3 RPM
6.0V
0.09 sec/60°
705.9 deg/s
117.6 RPM
Above Average
|
| Physical | |
| Weight | 2.65 oz75.0 gBelow Average |
| Dimensions |
L 1.60 in W 0.81 in H 1.52 in L 40.6 mm W 20.6 mm H 38.6 mm |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Titanium / Steel |
| Gear Spline/Teeth | 25 T estimate |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Neutral Position | 1520 µs |
| Refresh Rate | 333 Hz |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Temperature | -10–60 °C14–140 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Origin | |
| Country of Origin | Hong Kong |
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 67% of 1060 Digital Standard servos at 6.0V |
| Speed | Above Average Faster than 86% of 1045 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 21% of 1880 Digital Standard servos |
Performance Analysis
| Shaft Power | 6.50–11.33 W |
| Power Density | 5.752 W/in³ More power-dense than 84% of 1768 Digital Standard servos |
| Torque Density | 3.9819 oz-in/g Stronger than 60% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 151.60 oz-in/in³ Denser torque than 65% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.15686 (1/sec·g) Faster than 76% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 25.38 Better balanced than 45% of 1034 Digital Standard servos |
| Torque Gain per Volt | 16.47%/V More voltage-responsive (torque) than 56% of 873 Digital Standard servos |
| Speed Gain per Volt | 10.42%/V More voltage-responsive (speed) than 20% of 874 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 54% of 1560 Digital Standard servos |
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