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Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | HTS-21H |
| Category | Robotics |
| Performance | |
| Torque |
11.1V291.64 oz-in21.00 kg-cm2.1 N-m |
| Speed |
11.1V0.16 sec/60°375.0 deg/s62.5 RPM |
| Stall Current | ≤1 A≤1000 mATop 10% |
| Physical | |
| Weight | 2.12 oz60.0 gAverage |
| Shape | Boxed |
| Dimensions |
L 1.57 in W 0.79 in H 1.59 in L 39.9 mm W 20.1 mm H 40.4 mm |
| Drivetrain | |
| Gears | Metal |
| Gear Spline/Teeth | 25 T |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 240° |
| Mechanical Limit | 360° |
| Control System | SerialBUS |
| Programmable | Yes |
| Operating Modes | Position, Continuous |
| Electrical & Environment | |
| Operating Voltage | 9–12.6 V |
| Idle Current | 0.005 A5 mA |
| Connectivity | |
| Wire Length | 300 mm11.81 in |
| Baud Rate | 115.2 Kbps |
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 59% of 1902 Digital Standard servos |
| Stall Current | Top 10% Lower draw than 97% of 539 Digital Standard servos |
Performance Analysis
| Shaft Power | 3.37 W |
| Power Density | 1.709 W/in³ More power-dense than 37% of 1759 Digital Standard servos |
| Torque Density | 4.8607 oz-in/g |
| Torque-to-Volume Ratio | 147.89 oz-in/in³ |
| Speed-to-Weight | 0.10417 (1/sec·g) |
| Speed-Torque Trade-off | 46.66 |
| Current-per-Torque Ratio | 0.0034 A/oz-in |
| Voltage Range Width | 3.6 V Wider voltage range than 77% of 1539 Digital Standard servos |
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