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Technical Specifications
Last Updated: 2026-10-23
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | JR-S3911 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
208.10 oz-in
14.98 kg-cm
1.5 N-m
7.4V
183.30 oz-in
13.20 kg-cm
1.3 N-m
6.6V
163.50 oz-in
11.77 kg-cm
1.2 N-m
|
| Speed |
8.4V
0.12 sec/60°
500.0 deg/s
83.3 RPM
7.4V
0.14 sec/60°
428.6 deg/s
71.4 RPM
6.6V
0.16 sec/60°
375.0 deg/s
62.5 RPM
|
| Physical | |
| Weight | 1.20 oz34.0 gBelow Average |
| Dimensions |
L 1.043 in W 0.591 in H 1.299 in L 26.5 mm W 15.0 mm H 33.0 mm |
| Case Material | Metal |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal / Steel |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 180° |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 5.4–8.4 V |
| Connectivity | |
| Connector | JR (Universal) estimate |
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
| Weight | Below Average Lighter than 20% of 505 Digital Mini servos |
Performance Analysis
| Shaft Power | 1.89–3.21 W |
| Power Density | 4.005 W/in³ More power-dense than 80% of 482 Digital Mini servos |
| Torque Density | 4.8088 oz-in/g |
| Torque-to-Volume Ratio | 204.19 oz-in/in³ |
| Speed-to-Weight | 0.18382 (1/sec·g) |
| Speed-Torque Trade-off | 26.16 |
| Voltage Range Width | 3.0 V Wider voltage range than 66% of 405 Digital Mini servos |
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