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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | CYS-S2820 |
| Category | Hobby |
| Performance | |
| Torque |
7.2V
249.97 oz-in
18.00 kg-cm
1.8 N-m
6.0V
222.20 oz-in
16.00 kg-cm
1.6 N-m
Average
|
| Speed |
7.4V
0.14 sec/60°
428.6 deg/s
71.4 RPM
6.0V
0.16 sec/60°
375.0 deg/s
62.5 RPM
Below Average
|
| Running Current |
7.4V
0.150 A
150 mA
6.0V
0.120 A
120 mA
Above Average
|
| Stall Current | 2.8–3 A2800–3000 mAAverage |
| Physical | |
| Weight | 2.89 oz82.0 gBottom 10% |
| Dimensions |
L 1.575 in W 0.787 in H 1.63 in L 40.0 mm W 20.0 mm H 41.4 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Titanium |
| Gear Spline/Teeth | 25 T |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 90° |
| Pulse Cycle | 50 ms |
| Pulse Width | 1000-2000 µs |
| Neutral Position | 1500 µs |
| Dead Band | 2 µs |
| Control System | PWM |
| Programmable | No |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Temperature | -10–50 °C14–122 °F |
| Idle Current | 0.020 A20 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 | Average Stronger than 50% of 1043 Digital Standard servos at 6.0V |
| Speed | Below Average Faster than 34% of 1041 Digital Standard servos at 6.0V |
| Weight | Bottom 10% Lighter than 8% of 1902 Digital Standard servos |
| Running Current | Above Average Lower draw than 81% of 173 Digital Standard servos at 6.0V |
| Stall Current | Average Lower draw than 58% of 539 Digital Standard servos |
Performance Analysis
| Shaft Power | 2.57 W |
| Power Density | 1.271 W/in³ More power-dense than 25% of 1759 Digital Standard servos |
| Torque Density | 2.7098 oz-in/g Stronger than 37% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 109.98 oz-in/in³ Denser torque than 47% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.07622 (1/sec·g) Faster than 10% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 35.55 Better balanced than 58% of 1031 Digital Standard servos |
| Current-per-Torque Ratio | 0.0135 A/oz-in More efficient than 58% of 315 Digital Standard servos |
| Idle-to-Running Current Ratio | 0.167 Lower idle draw than 34% of 112 Digital Standard servos |
| No-Load vs Stall Current Spread | 25.00 Narrower current spread than 35% of 132 Digital Standard servos |
| Speed Gain per Volt | 10.21%/V More voltage-responsive (speed) than 19% of 871 Digital Standard servos |
| Voltage Range Width | 1.4 V Wider voltage range than 35% of 1539 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0020 Finer dead band than 32% of 468 Digital Standard servos |
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