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Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | CYS-S8220 |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
34.72 oz-in
2.50 kg-cm
0.2 N-m
4.8V
27.77 oz-in
2.00 kg-cm
0.2 N-m
Average
|
| Speed |
6.0V
0.07 sec/60°
857.1 deg/s
142.9 RPM
4.8V
0.09 sec/60°
666.7 deg/s
111.1 RPM
Above Average
|
| Running Current |
7.4V
0.140 A
140 mA
6.0V
0.120 A
120 mA
|
| Stall Current | 0.9–1 A900–1000 mAAverage |
| Physical | |
| Weight | 0.46 oz13.0 gBelow Average |
| Dimensions |
L 0.902 in W 0.472 in H 1.00 in L 22.9 mm W 12.0 mm H 25.4 mm |
| Drivetrain | |
| Motor Type | Cored |
| Gears | Metal |
| Gear Spline/Teeth | 21 T |
| Rotation Mode | Positional |
| Rotation/Support | Single Bearing |
| 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 |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | -10–50 °C14–122 °F |
| Idle Current | 0.010 A10 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 180 mm7.09 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 51% of 328 Digital Micro servos at 4.8V |
| Speed | Above Average Faster than 72% of 328 Digital Micro servos at 4.8V |
| Weight | Below Average Lighter than 34% of 620 Digital Micro servos |
| Stall Current | Average Lower draw than 47% of 194 Digital Micro servos |
Performance Analysis
| Shaft Power | 0.57–0.92 W |
| Power Density | 2.154 W/in³ More power-dense than 54% of 590 Digital Micro servos |
| Torque Density | 2.1362 oz-in/g Stronger than 37% of 327 Digital Micro servos |
| Torque-to-Volume Ratio | 65.23 oz-in/in³ Denser torque than 39% of 327 Digital Micro servos |
| Speed-to-Weight | 0.85470 (1/sec·g) Faster than 62% of 327 Digital Micro servos |
| Speed-Torque Trade-off | 2.50 Better balanced than 36% of 327 Digital Micro servos |
| Current-per-Torque Ratio | 0.0360 A/oz-in More efficient than 60% of 85 Digital Micro servos |
| Idle-to-Running Current Ratio | 0.083 |
| No-Load vs Stall Current Spread | 8.33 |
| Torque Gain per Volt | 20.86%/V More voltage-responsive (torque) than 74% of 268 Digital Micro servos |
| Speed Gain per Volt | 23.80%/V More voltage-responsive (speed) than 77% of 273 Digital Micro servos |
| Voltage Range Width | 1.2 V Wider voltage range than 28% of 511 Digital Micro servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0020 Finer dead band than 24% of 189 Digital Micro servos |
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