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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KM3811DHV |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
55.56 oz-in
4.00 kg-cm
0.4 N-m
7.4V
138.90 oz-in
10.00 kg-cm
1.0 N-m
6.0V
44.45 oz-in
3.20 kg-cm
0.3 N-m
5.0V
38.89 oz-in
2.80 kg-cm
0.3 N-m
Below Average
|
| Speed |
8.4V
0.12 sec/60°
500.0 deg/s
83.3 RPM
7.4V
0.13 sec/60°
461.5 deg/s
76.9 RPM
6.0V
0.14 sec/60°
428.6 deg/s
71.4 RPM
5.0V
0.16 sec/60°
375.0 deg/s
62.5 RPM
Below Average
|
| Stall Current | ≤2.8 A≤2800 mABelow Average |
| Physical | |
| Weight | 1.34 oz38.0 gBelow Average |
| Dimensions |
L 1.594 in W 0.799 in H 1.437 in L 40.5 mm W 20.3 mm H 36.5 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | Brushed |
| Gears | Plastic |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 63° |
| Mechanical Limit | 126° |
| Neutral Position | 1500 µs |
| Dead Band | 2 µs |
| Refresh Rate | 330 Hz |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 5–8.4 V |
| Temperature | -10–50 °C14–122 °F |
| Water Rating | Waterproof |
| Idle Current | 10.000 A10,000 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 in |
| 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
| Torque | Below Average Stronger than 21% of 262 Digital Mini servos at 5.0V |
| Speed | Below Average Faster than 14% of 263 Digital Mini servos at 5.0V |
| Weight | Below Average Lighter than 12% of 466 Digital Mini servos |
| Stall Current | Below Average Lower draw than 21% of 76 Digital Mini servos |
Performance Analysis
| Shaft Power | 0.45–1.98 W |
| Power Density | 1.079 W/in³ More power-dense than 22% of 440 Digital Mini servos |
| Torque Density | 1.0234 oz-in/g Stronger than 4% of 258 Digital Mini servos |
| Torque-to-Volume Ratio | 21.25 oz-in/in³ Denser torque than 0% of 262 Digital Mini servos |
| Speed-to-Weight | 0.16447 (1/sec·g) Faster than 5% of 259 Digital Mini servos |
| Speed-Torque Trade-off | 6.22 Better balanced than 37% of 261 Digital Mini servos |
| Current-per-Torque Ratio | 0.0720 A/oz-in More efficient than 6% of 52 Digital Mini servos |
| Torque Gain per Volt | 12.61%/V More voltage-responsive (torque) than 21% of 232 Digital Mini servos |
| Speed Gain per Volt | 9.80%/V More voltage-responsive (speed) than 13% of 235 Digital Mini servos |
| Voltage Range Width | 3.4 V Wider voltage range than 73% of 351 Digital Mini servos |
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