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Technical Specifications
Last Updated: 2026-10-26
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | DHV821 |
| Category | Hobby |
| Performance | |
| Torque |
7.4V83.32 oz-in6.00 kg-cm0.6 N-m |
| Speed |
7.4V0.06 sec/60°1,000.0 deg/s166.7 RPM |
| Stall Current | ≤3.5 A≤3500 mAAverage |
| Physical | |
| Weight | 2.54 oz72.0 gBelow Average |
| Dimensions |
L 1.57 in W 0.79 in H 1.54 in L 39.9 mm W 20.1 mm H 39.1 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Rotational Range | 180° |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.8–7.4 V |
| Temperature | -10–50 °C14–122 °F |
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 | Below Average Lighter than 22% of 2491 Standard servos |
| Stall Current | Average Lower draw than 40% of 648 Standard servos |
Performance Analysis
| Shaft Power | 2.57 W |
| Power Density | 1.344 W/in³ More power-dense than 38% of 62 Kpower servos |
| Torque Density | 1.1572 oz-in/g |
| Torque-to-Volume Ratio | 43.62 oz-in/in³ |
| Speed-to-Weight | 0.23148 (1/sec·g) |
| Speed-Torque Trade-off | 5.00 |
| Current-per-Torque Ratio | 0.0420 A/oz-in |
| Voltage Range Width | 2.6 V Wider voltage range than 54% of 49 Kpower servos |
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