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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 20% of 1060 Digital Standard servos at 4.8V |
| Speed | Average Faster than 59% of 1045 Digital Standard servos at 4.8V |
| Weight | Average Lighter than 55% of 1880 Digital Standard servos |
| Running Current | Below Average Lower draw than 25% of 226 Digital Standard servos at 4.8V |
| Stall Current | Average Lower draw than 59% of 570 Digital Standard servos |
Performance Analysis
| Shaft Power | 1.58–2.57 W |
| Power Density | 1.447 W/in³ More power-dense than 30% of 1768 Digital Standard servos |
| Torque Density | 1.7903 oz-in/g Stronger than 17% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 62.51 oz-in/in³ Denser torque than 22% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.12407 (1/sec·g) Faster than 57% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 14.43 Better balanced than 23% of 1034 Digital Standard servos |
| Current-per-Torque Ratio | 0.0270 A/oz-in More efficient than 15% of 331 Digital Standard servos |
| Idle-to-Running Current Ratio | 0.023 Lower idle draw than 81% of 167 Digital Standard servos |
| No-Load vs Stall Current Spread | 7.50 Narrower current spread than 81% of 179 Digital Standard servos |
| Torque Gain per Volt | 21.02%/V More voltage-responsive (torque) than 85% of 873 Digital Standard servos |
| Speed Gain per Volt | 25.01%/V More voltage-responsive (speed) than 95% of 874 Digital Standard servos |
| Voltage Range Width | 1.2 V Wider voltage range than 21% of 1560 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0008 Finer dead band than 90% of 504 Digital Standard servos |
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