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Technical Specifications
Last Updated: 2026-10-23
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | SPMSA6300 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
8.4V
530.22 oz-in
38.18 kg-cm
3.7 N-m
7.4V
467.06 oz-in
33.63 kg-cm
3.3 N-m
6.0V
378.37 oz-in
27.25 kg-cm
2.7 N-m
Above Average
|
| Speed |
8.4V
0.10 sec/60°
600.0 deg/s
100.0 RPM
7.4V
0.11 sec/60°
545.5 deg/s
90.9 RPM
6.0V
0.14 sec/60°
428.6 deg/s
71.4 RPM
Average
|
| Physical | |
| Weight | 2.81 oz79.8 gBelow Average |
| Dimensions |
L 1.57 in W 0.79 in H 1.49 in L 39.9 mm W 20.1 mm H 37.8 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Metal |
| Gear Spline/Teeth | 23 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Dead Band | 2 µs |
| Refresh Rate | 333 Hz |
| Control System | PWM |
| Programmable | No |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Connectivity | |
| Connector | Z |
| Wire Length | 457 mm17.99 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 81% of 1055 Digital Standard servos at 6.0V |
| Speed | Average Faster than 50% of 1038 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 12% of 1872 Digital Standard servos |
Performance Analysis
| Shaft Power | 5.00–9.80 W |
| Power Density | 5.305 W/in³ More power-dense than 81% of 1762 Digital Standard servos |
| Torque Density | 4.7415 oz-in/g Stronger than 75% of 1048 Digital Standard servos |
| Torque-to-Volume Ratio | 204.74 oz-in/in³ Denser torque than 84% of 1053 Digital Standard servos |
| Speed-to-Weight | 0.08951 (1/sec·g) Faster than 24% of 1031 Digital Standard servos |
| Speed-Torque Trade-off | 52.97 Better balanced than 79% of 1029 Digital Standard servos |
| Torque Gain per Volt | 16.72%/V More voltage-responsive (torque) than 60% of 868 Digital Standard servos |
| Speed Gain per Volt | 16.66%/V More voltage-responsive (speed) than 56% of 868 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 56% of 1552 Digital Standard servos |
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Reviews (1)
Includes 1 review aggregated from around the web.
There are very few ratings for this servo on the web. The manufacturer's page shows 5 out of 5, with no written feedback found, and a service bulletin exists for units from one production batch.
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