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Technical Specifications
Last Updated: 2026-09-16
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | 37965S |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
139.00 oz-in
10.01 kg-cm
1.0 N-m
4.8V
111.00 oz-in
7.99 kg-cm
0.8 N-m
Below Average
|
| Speed |
6.0V
0.10 sec/60°
600.0 deg/s
100.0 RPM
4.8V
0.13 sec/60°
461.5 deg/s
76.9 RPM
Average
|
| Running Current |
4.8V0.400 A400 mABelow Average |
| Stall Current | 2.4–3 A2400–3000 mAAverage |
| Physical | |
| Weight | 2.19 oz62.0 gAverage |
| Dimensions |
L 1.57 in W 0.78 in H 1.45 in L 39.9 mm W 19.8 mm H 36.8 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Motor Drive | FET |
| Gears | Metal |
| Gear Spline/Teeth | 24 T estimate |
| Shaft Size | 5.8 mm |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Clockwise |
| Rotational Range | 80° |
| Pulse Cycle | 20 ms |
| Pulse Width | 900-2100 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 | 4.8–6 V |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | Water Resistant |
| Idle Current | 0.009 A9 mA |
| Connectivity | |
| Connector | S |
| 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 | Below Average Stronger than 21% of 1043 Digital Standard servos at 4.8V |
| Speed | Average Faster than 57% of 1041 Digital Standard servos at 4.8V |
| Weight | Average Lighter than 54% of 1902 Digital Standard servos |
| Running Current | Below Average Lower draw than 31% of 173 Digital Standard servos at 4.8V |
| Stall Current | Average Lower draw than 59% of 539 Digital Standard servos |
Performance Analysis
| Shaft Power | 1.58–2.57 W |
| Power Density | 1.447 W/in³ More power-dense than 30% of 1759 Digital Standard servos |
| Torque Density | 1.7903 oz-in/g Stronger than 17% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 62.51 oz-in/in³ Denser torque than 22% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.12407 (1/sec·g) Faster than 56% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 14.43 Better balanced than 23% of 1031 Digital Standard servos |
| Current-per-Torque Ratio | 0.0270 A/oz-in More efficient than 18% of 315 Digital Standard servos |
| Idle-to-Running Current Ratio | 0.023 Lower idle draw than 81% of 112 Digital Standard servos |
| No-Load vs Stall Current Spread | 7.50 Narrower current spread than 76% of 132 Digital Standard servos |
| Torque Gain per Volt | 21.02%/V More voltage-responsive (torque) than 86% of 850 Digital Standard servos |
| Speed Gain per Volt | 25.01%/V More voltage-responsive (speed) than 95% of 871 Digital Standard servos |
| Voltage Range Width | 1.2 V Wider voltage range than 21% of 1539 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0008 Finer dead band than 91% of 468 Digital Standard servos |
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