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Technical Specifications
Last Updated: 2026-10-22
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | 39380 |
| 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
|
| Speed |
7.4V0.14 sec/60°428.6 deg/s71.4 RPM |
| Running Current |
7.4V
0.250 A
250 mA
6.0V
0.250 A
250 mA
|
| Stall Current | 2.1–2.7 A2100–2700 mAAbove Average |
| Physical | |
| Weight | 2.40 oz68.0 gAverage |
| 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 | Plastic / 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 | 120° |
| Mechanical Limit | 160° |
| Pulse Cycle | 20 ms |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1500 µs |
| Dead Band | 1 µs |
| Refresh Rate | 50 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Signal Voltage | 3-5V |
| Electrical & Environment | |
| Operating Voltage | 4–8.4 V |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | IP54 |
| Idle Current | 0.027 A27 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 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
| Weight | Average Lighter than 39% of 1880 Digital Standard servos |
| Stall Current | Above Average Lower draw than 70% of 570 Digital Standard servos |
Performance Analysis
| Shaft Power | 6.23 W |
| Power Density | 3.351 W/in³ More power-dense than 64% of 1768 Digital Standard servos |
| Torque Density | 6.9412 oz-in/g |
| Torque-to-Volume Ratio | 253.70 oz-in/in³ |
| Speed-to-Weight | 0.10504 (1/sec·g) |
| Speed-Torque Trade-off | 66.08 |
| Current-per-Torque Ratio | 0.0057 A/oz-in |
| Idle-to-Running Current Ratio | 0.108 |
| No-Load vs Stall Current Spread | 10.80 |
| Voltage Range Width | 4.4 V Wider voltage range than 95% of 1560 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0008 Finer dead band than 89% of 504 Digital Standard servos |
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