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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | 39384S |
| Category | Hobby |
| Performance | |
| Torque |
7.4V
472.00 oz-in
33.99 kg-cm
3.3 N-m
6.0V
472.00 oz-in
33.99 kg-cm
3.3 N-m
Above Average
|
| Speed |
7.4V
0.14 sec/60°
428.6 deg/s
71.4 RPM
6.0V
0.17 sec/60°
352.9 deg/s
58.8 RPM
Below Average
|
| Stall Current | ≤2.7 A≤2700 mAAbove Average |
| Physical | |
| Weight | 2.54 oz72.0 gBelow Average |
| Dimensions |
L 1.57 in W 0.79 in H 1.50 in L 39.9 mm W 20.1 mm H 38.1 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Motor Drive | MOS |
| Gears | Titanium |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Clockwise |
| Rotational Range | 158° |
| Pulse Width | 700-2300 µs |
| Dead Band | 1 µs |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Signal Voltage | 3-5V |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | IP54 |
| Idle Current | 0.027 A27 mA |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 330.2 mm13 in |
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 89% of 1043 Digital Standard servos at 6.0V |
| Speed | Below Average Faster than 26% of 1041 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 28% of 1902 Digital Standard servos |
| Stall Current | Above Average Lower draw than 70% of 539 Digital Standard servos |
Performance Analysis
| Shaft Power | 5.13–6.23 W |
| Power Density | 3.351 W/in³ More power-dense than 63% of 1759 Digital Standard servos |
| Torque Density | 6.5556 oz-in/g Stronger than 91% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 253.70 oz-in/in³ Denser torque than 91% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.08170 (1/sec·g) Faster than 15% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 80.25 Better balanced than 92% of 1031 Digital Standard servos |
| Current-per-Torque Ratio | 0.0057 A/oz-in More efficient than 97% of 315 Digital Standard servos |
| Torque Gain per Volt | 0.00%/V More voltage-responsive (torque) than 1% of 850 Digital Standard servos |
| Speed Gain per Volt | 15.32%/V More voltage-responsive (speed) than 49% of 871 Digital Standard servos |
| Voltage Range Width | 1.4 V Wider voltage range than 32% of 1539 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0006 Finer dead band than 93% of 468 Digital Standard servos |
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