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Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | 3899 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
4.8V36.00 oz-in2.59 kg-cm0.3 N-mAverage |
| Speed |
4.8V0.24 sec/60°250.0 deg/s41.7 RPMBottom 10% |
| Physical | |
| Weight | 0.92 oz26.1 gBelow Average |
| Dimensions |
L 1.30 in W 0.59 in H 1.06 in L 33.0 mm W 15.0 mm H 26.9 mm |
| Drivetrain | |
| Gears | Plastic |
| Gear Spline/Teeth | 23 T estimate |
| Rotation Mode | Positional |
| Rotation/Support | Single Bearing |
| Control & Signal | |
| Modulation | Analog |
| Rotational Range | 90° |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Connectivity | |
| Connector | JR (Universal) estimate |
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 52% of 80 Analog Mini servos at 4.8V |
| Speed | Bottom 10% Faster than 8% of 81 Analog Mini servos at 4.8V |
| Weight | Below Average Lighter than 21% of 165 Analog Mini servos |
Performance Analysis
| Shaft Power | 0.28 W |
| Power Density | 0.341 W/in³ More power-dense than 4% of 163 Analog Mini servos |
| Torque Density | 1.3793 oz-in/g Stronger than 15% of 80 Analog Mini servos |
| Torque-to-Volume Ratio | 44.28 oz-in/in³ Denser torque than 32% of 80 Analog Mini servos |
| Speed-to-Weight | 0.15964 (1/sec·g) Faster than 6% of 81 Analog Mini servos |
| Speed-Torque Trade-off | 8.64 Better balanced than 85% of 80 Analog Mini servos |
| Voltage Range Width | 1.2 V Wider voltage range than 83% of 88 Analog Mini servos |
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Reviews (1)
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Ventus
July 26, 2022Application(s): .50
Comments: Ccccc