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Technical Specifications
Last Updated: 2026-09-13| Identity | |
| Brand |  |
| Product Number | 37954S |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
7.4V
403.00 oz-in
29.02 kg-cm
2.8 N-m
6.0V
333.00 oz-in
23.98 kg-cm
2.4 N-m
4.8V
250.00 oz-in
18.00 kg-cm
1.8 N-m
Average
|
| Speed |
7.4V
0.12 sec/60°
500.0 deg/s
83.3 RPM
6.0V
0.15 sec/60°
400.0 deg/s
66.7 RPM
4.8V
0.19 sec/60°
315.8 deg/s
52.6 RPM
Below Average
|
| Running Current |
6.0V
0.300 A
300 mA
4.8V
0.240 A
240 mA
Above Average
|
| Stall Current | 4.2–3 A4200–3000 mAAverage |
| Physical | |
| Weight | 2.40 oz68.0 gAverage |
| Dimensions |
L 1.575 in W 0.787 in H 1.457 in L 40.0 mm W 20.0 mm H 37.0 mm |
| Case Material | Plastic / Aluminum |
| Drivetrain | |
| Motor Type | Coreless Brushed |
| Motor Drive | MOS |
| Gears | Steel |
| Gear Spline/Teeth | 24 T |
| Shaft Size | 5.8 mm |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Clockwise |
| Rotational Range | 180° |
| Mechanical Limit | 180° |
| Pulse Width | 1100-1900 µs |
| Neutral Position | 1500 µs |
| Dead Band | 1 µs |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Signal Voltage | 3-5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–7.4 V |
| Power Source | 2S Li-Po |
| Regulator Type | Direct |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | IP54 |
| Certification | CE | ROHS | EMC |
| Idle Current | 0.009 A9 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
| Torque | Average Stronger than 61% of 846 Digital Standard servos at 4.8V |
| Speed | Below Average Faster than 14% of 834 Digital Standard servos at 4.8V |
| Weight | Average Lighter than 37% of 1820 Digital Standard servos |
| Running Current | Above Average Lower draw than 69% of 76 Digital Standard servos at 4.8V |
| Stall Current | Average Lower draw than 56% of 403 Digital Standard servos |
Performance Analysis
| Shaft Power | 2.43–6.21 W |
| Power Density | 3.438 W/in³ More power-dense than 64% of 1646 Digital Standard servos |
| Torque Density | 3.6765 oz-in/g Stronger than 56% of 835 Digital Standard servos |
| Torque-to-Volume Ratio | 138.43 oz-in/in³ Denser torque than 61% of 845 Digital Standard servos |
| Speed-to-Weight | 0.07740 (1/sec·g) Faster than 11% of 824 Digital Standard servos |
| Speed-Torque Trade-off | 47.50 Better balanced than 75% of 829 Digital Standard servos |
| Current-per-Torque Ratio | 0.0120 A/oz-in More efficient than 66% of 232 Digital Standard servos |
| Idle-to-Running Current Ratio | 0.038 Lower idle draw than 77% of 27 Digital Standard servos |
| No-Load vs Stall Current Spread | 12.50 Narrower current spread than 60% of 49 Digital Standard servos |
| Torque Gain per Volt | 23.54%/V More voltage-responsive (torque) than 91% of 675 Digital Standard servos |
| Speed Gain per Volt | 22.43%/V More voltage-responsive (speed) than 89% of 689 Digital Standard servos |
| Voltage Range Width | 2.6 V Wider voltage range than 67% of 1273 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0013 Finer dead band than 65% of 329 Digital Standard servos |
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Reviews (3)
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Игорь
April 9, 2017Application(s): Стоит на рудере 2.2 м
Comments: Слабое место- шестерня, слизало шлицы
Paul
December 16, 2013Application(s): SCX10 and Axail Wrait.
Comments: Had it for years now. Powered off a BEC @6v. Unstoppable. Mine has been through rivers and all-sorts of muck. Keeps on ticking and is as strong as a bull. Helps push those weighted 2.2 TSLs.
TCCustoms
June 18, 2013Application(s): Axial AX-10 Rock Crawler front steering servo
Comments: Holy Crap...this this is fast and strong! Running on 2s 7.4v and it doesnt hesitate for anything. Wished it was waterproof but still very happy