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Technical Specifications
Last Updated: 2026-09-14| Identity | |
| Brand |  |
| Product Number | MG90S |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
30.55 oz-in
2.20 kg-cm
0.2 N-m
4.8V
25.00 oz-in
1.80 kg-cm
0.2 N-m
Bottom 10%
|
| Speed |
6.0V
0.08 sec/60°
750.0 deg/s
125.0 RPM
4.8V
0.10 sec/60°
600.0 deg/s
100.0 RPM
Above Average
|
| Physical | |
| Weight | 0.47 oz13.4 gTop 10% |
| Dimensions |
L 0.898 in W 0.48 in H 1.122 in L 22.8 mm W 12.2 mm H 28.5 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Gear Spline/Teeth | 21 T estimate |
| Rotation/Support | Single Bearing |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 60° |
| Dead Band | 1 µs |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | 0–55 °C32–131 °F |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 250 mm9.84 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 | Bottom 10% Stronger than 4% of 290 Digital Mini servos at 4.8V |
| Speed | Above Average Faster than 68% of 293 Digital Mini servos at 4.8V |
| Weight | Top 10% Lighter than 96% of 505 Digital Mini servos |
Performance Analysis
| Shaft Power | 0.46–0.71 W |
| Power Density | 1.460 W/in³ More power-dense than 43% of 482 Digital Mini servos |
| Torque Density | 1.8657 oz-in/g Stronger than 28% of 286 Digital Mini servos |
| Torque-to-Volume Ratio | 51.69 oz-in/in³ Denser torque than 23% of 288 Digital Mini servos |
| Speed-to-Weight | 0.74627 (1/sec·g) Faster than 95% of 289 Digital Mini servos |
| Speed-Torque Trade-off | 2.50 Better balanced than 10% of 288 Digital Mini servos |
| Torque Gain per Volt | 18.50%/V More voltage-responsive (torque) than 63% of 257 Digital Mini servos |
| Speed Gain per Volt | 20.83%/V More voltage-responsive (speed) than 77% of 262 Digital Mini servos |
| Voltage Range Width | 1.2 V Wider voltage range than 21% of 405 Digital Mini servos |
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Reviews (3)
Includes 1 review aggregated from around the web.
Robot builders call it one of the good MG90S clones, with real digital performance. Some users report drag-related glitches and interference when mixed with certain receivers.
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Skyhawk
February 1, 2016Application(s): T-rex 450SE V2
Comments: I replaced the Hi-Tec servos that came with the helo and they are quicker and more precise. Just make sure that you set the Tx frame rate to 11 Ms to get full advantage of the digital properties. Also, you can't beat the price.
waxxer
March 27, 2013Application(s): Fun Cub.
Comments: So far so good. Noisy as hell but faster and more precise for servos in the price range. In contrast I have had Hobbyking servos dead on arrival.