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Technical Specifications
Last Updated: 2026-10-22
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%
|
| Running Current |
7.4V
0.150 A
150 mA
6.0V
0.130 A
130 mA
Above Average
|
| Stall Current | 3–3.6 A3000–3600 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 | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Backlash | 1.000° |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 180° |
| Mechanical Limit | 360° |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1500 µs |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Temperature | -10–50 °C14–122 °F |
| Water Rating | Waterproof |
| Certification | FCC | CE | ROHS | REACH | EMC |
| Idle Current | 0.150 A150 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 69% of 1060 Digital Standard servos at 6.0V |
| Speed | Bottom 10% Faster than 1% of 1045 Digital Standard servos at 6.0V |
| Weight | Average Lighter than 37% of 1880 Digital Standard servos |
| Running Current | Above Average Lower draw than 71% of 226 Digital Standard servos at 6.0V |
| Stall Current | Average Lower draw than 41% of 570 Digital Standard servos |
Performance Analysis
| Shaft Power | 2.17–3.27 W |
| Power Density | 1.630 W/in³ More power-dense than 35% of 1768 Digital Standard servos |
| Torque Density | 4.4287 oz-in/g Stronger than 69% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 152.37 oz-in/in³ Denser torque than 66% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.05574 (1/sec·g) Faster than 1% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 79.44 Better balanced than 92% of 1034 Digital Standard servos |
| Current-per-Torque Ratio | 0.0118 A/oz-in More efficient than 68% of 331 Digital Standard servos |
| Idle-to-Running Current Ratio | 1.154 Lower idle draw than 3% of 167 Digital Standard servos |
| No-Load vs Stall Current Spread | 27.69 Narrower current spread than 36% of 179 Digital Standard servos |
| Torque Gain per Volt | 19.48%/V More voltage-responsive (torque) than 76% of 873 Digital Standard servos |
| Speed Gain per Volt | 12.97%/V More voltage-responsive (speed) than 34% of 874 Digital Standard servos |
| Voltage Range Width | 1.4 V Wider voltage range than 29% of 1560 Digital Standard servos |
| Backlash-to-Range Ratio | 0.00556 Tighter backlash than 10% of 52 Digital Standard servos |
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