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Technical Specifications
Last Updated: 2026-07-10
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Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | CYS-S2909 |
| Category | Hobby |
| Performance | |
| Torque |
7.2V
155.54 oz-in
11.20 kg-cm
1.1 N-m
6.0V
111.10 oz-in
8.00 kg-cm
0.8 N-m
|
| Speed |
7.4V
0.09 sec/60°
666.7 deg/s
111.1 RPM
6.0V
0.11 sec/60°
545.5 deg/s
90.9 RPM
|
| Running Current | (add) |
| Stall Current | 2.5–3 A2500–3000 mA |
| Physical | |
| Weight | 2.54 oz72.0 g |
| Dimensions |
L 1.58 in W 0.79 in H 1.55 in L 40.0 mm W 20.0 mm H 39.3 mm |
| Case Material | (add) |
| Drivetrain | |
| Motor Type | Coreless |
| Motor Drive | (add) |
| Gears | Titanium |
| Gear Spline/Teeth | 25 T |
| Shaft Size | (add) |
| Rotation Mode | (add) |
| Rotation/Support | (add) |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 90° |
| Mechanical Limit | (add) |
| Pulse Cycle | 50 ms |
| Pulse Width | 1000-2000 µs |
| Neutral Position | 1500 µs |
| Dead Band | 2 µs |
| Refresh Rate | (add) |
| Angle Sensor | (add) |
| Control System | PWM |
| Programmable | (add) |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | -10–50 °C14–122 °F |
| Water Rating | (add) |
| Certification | (add) |
| Idle Current | (add) |
| 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.
Performance Analysis
| Shaft Power | 1.87 W |
| Torque Density | 1.5431 oz-in/g Stronger than 13% of the 831 Digital Standard servos in the database |
| Torque-to-Volume Ratio | 57.86 oz-in/in³ Denser torque than 22% of the 842 Digital Standard servos in the database |
| Power Density | 0.973 W/in³ More power-dense than 17% of the 1643 Digital Standard servos in the database |
| Speed-to-Weight | 0.12626 (1/sec·g) Faster than 56% of the 820 Digital Standard servos in the database |
| Speed-Torque Trade-off | 12.22 Better balanced than 21% of the 825 Digital Standard servos in the database |
| Current-per-Torque Ratio | 0.0270 A/oz-in More efficient than 23% of the 230 Digital Standard servos in the database |
| Speed Gain per Volt | 15.87%/V More voltage-responsive (speed) than 53% of the 686 Digital Standard servos in the database |
| Voltage Range Width | 1.4 V Wider voltage range than 34% of the 1268 Digital Standard servos in the database |
| Dead-Band-to-Pulse-Width Ratio | 0.0020 Finer dead band than 32% of the 326 Digital Standard servos in the database |
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