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Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | MS18 |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
26.39 oz-in
1.90 kg-cm
0.2 N-m
4.8V
19.44 oz-in
1.40 kg-cm
0.1 N-m
Average
|
| Speed |
6.0V
0.08 sec/60°
750.0 deg/s
125.0 RPM
4.8V
0.09 sec/60°
666.7 deg/s
111.1 RPM
Top 10%
|
| Running Current |
6.0V
0.500 A
500 mA
4.8V
0.400 A
400 mA
Bottom 10%
|
| Stall Current | 1.3–1.6 A1300–1600 mABottom 10% |
| Physical | |
| Weight | 0.32 oz9.0 gAverage |
| Dimensions |
L 0.87 in W 0.46 in H 1.181 in L 22.1 mm W 11.7 mm H 30.0 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | Brushed |
| Gears | Metal |
| Gear Spline/Teeth | 21 T |
| Rotation Mode | Positional |
| Rotation/Support | Bushing |
| Control & Signal | |
| Modulation | Analog |
| Rotational Range | 180° |
| Mechanical Limit | 200° |
| Pulse Cycle | 20 ms |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1500 µs |
| Dead Band | 8 µs |
| Control System | PWM |
| Programmable | No |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | -25–70 °C-13–158 °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 | Average Stronger than 54% of 175 Analog Micro servos at 4.8V |
| Speed | Top 10% Faster than 94% of 176 Analog Micro servos at 4.8V |
| Weight | Average Lighter than 36% of 371 Analog Micro servos |
| Running Current | Bottom 10% Lower draw than 8% of 38 Analog Micro servos at 4.8V |
| Stall Current | Bottom 10% Lower draw than 4% of 56 Analog Micro servos |
Performance Analysis
| Torque Density | 2.1600 oz-in/g Stronger than 55% of 175 Analog Micro servos |
| Torque-to-Volume Ratio | 41.13 oz-in/in³ Denser torque than 29% of 175 Analog Micro servos |
| Speed-to-Weight | 1.23457 (1/sec·g) Faster than 65% of 176 Analog Micro servos |
| Speed-Torque Trade-off | 1.75 Better balanced than 31% of 174 Analog Micro servos |
| Current-per-Torque Ratio | 0.0823 A/oz-in More efficient than 2% of 43 Analog Micro servos |
| No-Load vs Stall Current Spread | 4.00 Narrower current spread than 50% of 29 Analog Micro servos |
| Torque Gain per Volt | 29.79%/V More voltage-responsive (torque) than 94% of 109 Analog Micro servos |
| Speed Gain per Volt | 10.41%/V More voltage-responsive (speed) than 19% of 110 Analog Micro servos |
| Voltage Range Width | 1.2 V Wider voltage range than 11% of 196 Analog Micro servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0040 Finer dead band than 56% of 49 Analog Micro servos |
Notes
Generic SG90
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