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Technical Specifications
Last Updated: 2026-10-26
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | CYS-S3120 |
| Category | Hobby |
| Performance | |
| Torque |
7.4V
55.56 oz-in
4.00 kg-cm
0.4 N-m
6.0V
41.67 oz-in
3.00 kg-cm
0.3 N-m
Above Average
|
| Speed |
7.4V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
6.0V
0.08 sec/60°
800.0 deg/s
133.3 RPM
Above Average
|
| Running Current |
7.4V
0.055 A
55 mA
6.0V
0.050 A
50 mA
Top 10%
|
| Stall Current | 1.5–1.8 A1500–1800 mABelow Average |
| Physical | |
| Weight | 0.71 oz20.0 gBelow Average |
| Dimensions |
L 0.905 in W 0.472 in H 1.146 in L 23.0 mm W 12.0 mm H 29.1 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Gear Spline/Teeth | 21 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 90° |
| Pulse Width | 1000-2000 µs |
| Neutral Position | 1500 µs |
| Dead Band | 4 µs |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Temperature | -20–60 °C-4–140 °F |
| Idle Current | 0.020 A20 mA |
| Connectivity | |
| Connector | JR (Universal) estimate |
| 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 | Above Average Stronger than 76% of 349 Digital Micro servos at 6.0V |
| Speed | Above Average Faster than 88% of 347 Digital Micro servos at 6.0V |
| Weight | Below Average Lighter than 16% of 597 Digital Micro servos |
| Running Current | Top 10% Lower draw than 100% of 60 Digital Micro servos at 6.0V |
| Stall Current | Below Average Lower draw than 21% of 188 Digital Micro servos |
Performance Analysis
| Shaft Power | 1.03–1.71 W |
| Power Density | 3.498 W/in³ More power-dense than 67% of 563 Digital Micro servos |
| Torque Density | 2.0835 oz-in/g Stronger than 34% of 349 Digital Micro servos |
| Torque-to-Volume Ratio | 85.12 oz-in/in³ Denser torque than 61% of 345 Digital Micro servos |
| Speed-to-Weight | 0.66667 (1/sec·g) Faster than 41% of 347 Digital Micro servos |
| Speed-Torque Trade-off | 3.13 Better balanced than 44% of 345 Digital Micro servos |
| Current-per-Torque Ratio | 0.0432 A/oz-in More efficient than 39% of 98 Digital Micro servos |
| Idle-to-Running Current Ratio | 0.400 Lower idle draw than 7% of 42 Digital Micro servos |
| No-Load vs Stall Current Spread | 36.00 Narrower current spread than 0% of 45 Digital Micro servos |
| Torque Gain per Volt | 23.81%/V More voltage-responsive (torque) than 84% of 290 Digital Micro servos |
| Speed Gain per Volt | 17.86%/V More voltage-responsive (speed) than 53% of 295 Digital Micro servos |
| Voltage Range Width | 1.4 V Wider voltage range than 49% of 496 Digital Micro servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0040 Finer dead band than 6% of 182 Digital Micro servos |
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