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Technical Specifications
Last Updated: 2026-10-08
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
Below Average
|
| Stall Current | 1.3–1.6 A1300–1600 mABottom 10% |
| Physical | |
| Weight | 0.32 oz9.0 gBelow Average |
| 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 | Hybrid |
| 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 59% of 131 Analog Micro servos at 4.8V |
| Speed | Top 10% Faster than 91% of 130 Analog Micro servos at 4.8V |
| Weight | Below Average Lighter than 30% of 335 Analog Micro servos |
| Running Current | Below Average Lower draw than 19% of 33 Micro servos at 4.8V |
| Stall Current | Bottom 10% Lower draw than 8% of 38 Analog Micro servos |
Performance Analysis
| Torque Density | 2.1600 oz-in/g Stronger than 50% of 131 Analog Micro servos |
| Torque-to-Volume Ratio | 41.13 oz-in/in³ Denser torque than 29% of 131 Analog Micro servos |
| Speed-to-Weight | 1.23457 (1/sec·g) Faster than 61% of 130 Analog Micro servos |
| Speed-Torque Trade-off | 1.75 Better balanced than 37% of 130 Analog Micro servos |
| Current-per-Torque Ratio | 0.0823 A/oz-in More efficient than 10% of 32 Analog Micro servos |
| No-Load vs Stall Current Spread | 4.00 5th-highest no-load vs stall current spread of 20 Micro servos |
| Torque Gain per Volt | 29.79%/V 5th-highest torque gain per volt of 72 Analog Micro servos |
| Speed Gain per Volt | 10.41%/V More voltage-responsive (speed) than 21% of 71 Analog Micro servos |
| Voltage Range Width | 1.2 V Wider voltage range than 10% of 137 Analog Micro servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0040 Finer dead band than 52% of 28 Analog Micro servos |
Notes
Generic SG90
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