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Technical Specifications
Last Updated: 2026-10-24
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | SPMSA7090 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
8.4V
250.00 oz-in
18.00 kg-cm
1.8 N-m
7.4V
215.00 oz-in
15.48 kg-cm
1.5 N-m
6.0V
205.00 oz-in
14.76 kg-cm
1.4 N-m
|
| Speed |
8.4V
0.07 sec/60°
882.4 deg/s
147.1 RPM
7.4V
0.09 sec/60°
659.3 deg/s
109.9 RPM
6.0V
0.17 sec/60°
352.9 deg/s
58.8 RPM
|
| Physical | |
| Weight | 1.76 oz50.0 gAverage |
| Dimensions |
L 1.60 in W 0.81 in H 0.99 in L 40.6 mm W 20.6 mm H 25.1 mm |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Metal |
| Gear Spline/Teeth | 23 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Dead Band | 1 µs |
| Control System | PWM |
| Programmable | No |
| Electrical & Environment | |
| Operating Voltage | 4.8–8.4 V |
| Connectivity | |
| Connector | JR (Universal) |
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
| Weight | Average Lighter than 60% of 304 Digital Low Profile servos |
Performance Analysis
| Shaft Power | 2.23–6.80 W |
| Power Density | 5.298 W/in³ More power-dense than 68% of 273 Digital Low Profile servos |
| Torque Density | 4.1000 oz-in/g |
| Torque-to-Volume Ratio | 159.78 oz-in/in³ |
| Speed-to-Weight | 0.11765 (1/sec·g) |
| Speed-Torque Trade-off | 34.85 |
| Voltage Range Width | 3.6 V Wider voltage range than 87% of 276 Digital Low Profile servos |
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