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Technical Specifications
Last Updated: 2026-10-22
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| 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
Above Average
|
| 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 | 0.32 oz9.0 gAverage |
| Dimensions |
L 0.90 in W 0.48 in H 1.12 in L 22.9 mm W 12.2 mm H 28.4 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Gear Spline/Teeth | 21 T estimate |
| Control & Signal | |
| Modulation | Analog |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 175 mm6.89 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 | Above Average Stronger than 80% of 160 Analog Micro servos at 4.8V |
| Speed | Above Average Faster than 84% of 160 Analog Micro servos at 4.8V |
| Weight | Average Lighter than 41% of 336 Analog Micro servos |
Performance Analysis
| Shaft Power | 0.46–0.71 W |
| Power Density | 1.459 W/in³ More power-dense than 93% of 322 Analog Micro servos |
| Torque Density | 2.7778 oz-in/g Stronger than 91% of 160 Analog Micro servos |
| Torque-to-Volume Ratio | 51.67 oz-in/in³ Denser torque than 54% of 160 Analog Micro servos |
| Speed-to-Weight | 1.11111 (1/sec·g) Faster than 68% of 160 Analog Micro servos |
| Speed-Torque Trade-off | 2.50 Better balanced than 59% of 159 Analog Micro servos |
| Torque Gain per Volt | 18.50%/V More voltage-responsive (torque) than 67% of 101 Analog Micro servos |
| Speed Gain per Volt | 20.83%/V More voltage-responsive (speed) than 79% of 101 Analog Micro servos |
| Voltage Range Width | 1.2 V Wider voltage range than 14% of 174 Analog Micro servos |
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Reviews (1)
Includes 1 review aggregated from around the web.
There are few reviews for this servo on the web. A video tester says Racerstar units are now a way better choice than the cheaper fake Tower Pro MG90S, and another reviewer rates one 4.2/5.
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