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Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | DS-S020B-C |
| Category | Hobby |
| Performance | |
| Torque |
7.4V
388.92 oz-in
28.01 kg-cm
2.7 N-m
6.0V
305.58 oz-in
22.00 kg-cm
2.2 N-m
Above Average
|
| Speed |
7.4V
0.22 sec/60°
272.7 deg/s
45.5 RPM
6.0V
0.26 sec/60°
230.8 deg/s
38.5 RPM
Bottom 10%
|
| Stall Current | ≤3.6 A≤3600 mAAverage |
| Physical | |
| Weight | 2.43 oz69.0 gAverage |
| Dimensions |
L 1.575 in W 0.787 in H 1.618 in L 40.0 mm W 20.0 mm H 41.1 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Cored |
| Gears | Metal |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 180° |
| Pulse Width | 500-2500 µs |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Water Rating | Waterproof |
| Idle Current | 0.012 A12 mA |
| Connectivity | |
| Connector | JR (Universal) estimate |
| 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 | Above Average Stronger than 68% of 1043 Digital Standard servos at 6.0V |
| Speed | Bottom 10% Faster than 1% of 1041 Digital Standard servos at 6.0V |
| Weight | Average Lighter than 36% of 1902 Digital Standard servos |
| Stall Current | Average Lower draw than 41% of 539 Digital Standard servos |
Performance Analysis
| Shaft Power | 2.17–3.27 W |
| Power Density | 1.630 W/in³ More power-dense than 35% of 1759 Digital Standard servos |
| Torque Density | 4.4287 oz-in/g Stronger than 68% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 152.37 oz-in/in³ Denser torque than 64% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.05574 (1/sec·g) Faster than 1% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 79.44 Better balanced than 91% of 1031 Digital Standard servos |
| Current-per-Torque Ratio | 0.0118 A/oz-in More efficient than 68% of 315 Digital Standard servos |
| Torque Gain per Volt | 19.48%/V More voltage-responsive (torque) than 77% of 850 Digital Standard servos |
| Speed Gain per Volt | 12.97%/V More voltage-responsive (speed) than 35% of 871 Digital Standard servos |
| Voltage Range Width | 1.4 V Wider voltage range than 29% of 1539 Digital Standard servos |
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