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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | CYS-BLS5820 |
| Category | Hobby |
| Performance | |
| Torque |
7.2V
277.75 oz-in
20.00 kg-cm
2.0 N-m
6.0V
236.09 oz-in
17.00 kg-cm
1.7 N-m
Average
|
| 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
Above Average
|
| Running Current |
7.4V
0.100 A
100 mA
6.0V
0.080 A
80 mA
Top 10%
|
| Stall Current | 3–3 A3000–3000 mAAverage |
| Physical | |
| Weight | 2.54 oz72.0 gBelow Average |
| Dimensions |
L 1.575 in W 0.787 in H 1.549 in L 40.0 mm W 20.0 mm H 39.3 mm |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Titanium |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 90° |
| Pulse Width | 1000-2000 µs |
| Neutral Position | 1500 µs |
| Dead Band | 2 µs |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Temperature | -10–50 °C14–122 °F |
| Idle Current | 0.020 A20 mA |
| Connectivity | |
| Connector | JR (Universal) estimate |
| 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 53% of 1043 Digital Standard servos at 6.0V |
| Speed | Above Average Faster than 72% of 1041 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 28% of 1902 Digital Standard servos |
| Running Current | Top 10% Lower draw than 96% of 173 Digital Standard servos at 6.0V |
| Stall Current | Average Lower draw than 58% of 539 Digital Standard servos |
Performance Analysis
| Shaft Power | 3.97 W |
| Power Density | 2.067 W/in³ More power-dense than 45% of 1759 Digital Standard servos |
| Torque Density | 3.2790 oz-in/g Stronger than 47% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 122.96 oz-in/in³ Denser torque than 52% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.12626 (1/sec·g) Faster than 58% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 25.97 Better balanced than 45% of 1031 Digital Standard servos |
| Current-per-Torque Ratio | 0.0127 A/oz-in More efficient than 62% of 315 Digital Standard servos |
| Idle-to-Running Current Ratio | 0.250 Lower idle draw than 17% of 112 Digital Standard servos |
| No-Load vs Stall Current Spread | 37.50 Narrower current spread than 24% of 132 Digital Standard servos |
| Speed Gain per Volt | 15.87%/V More voltage-responsive (speed) than 53% of 871 Digital Standard servos |
| Voltage Range Width | 1.4 V Wider voltage range than 34% of 1539 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0020 Finer dead band than 30% of 468 Digital Standard servos |
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