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Technical Specifications
Last Updated: 2026-09-16
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | SPMSA6380 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
160.00 oz-in
11.52 kg-cm
1.1 N-m
6.0V
102.00 oz-in
7.34 kg-cm
0.7 N-m
Below Average
|
| Speed |
8.4V
0.13 sec/60°
461.5 deg/s
76.9 RPM
6.0V
0.17 sec/60°
352.9 deg/s
58.8 RPM
Below Average
|
| Running Current |
6.0V
0.240 A
240 mA
Average
4.8V
0.220 A
220 mA
|
| Stall Current | ≤2.5 A≤2500 mAAbove Average |
| Physical | |
| Weight | 1.50 oz42.5 gTop 10% |
| Dimensions |
L 1.52 in W 0.74 in H 1.47 in L 38.6 mm W 18.8 mm H 37.3 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Gear Spline/Teeth | 23 T estimate |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Pulse Cycle | 3 ms |
| Pulse Width | 1000-2000 µs |
| Neutral Position | 1520 µs |
| Dead Band | 5 µs |
| Refresh Rate | 333 Hz |
| Control System | PWM |
| Programmable | No |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Power Source | 2S Li-Po |
| Idle Current | 0.010 A10 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 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 | Below Average Stronger than 19% of 1060 Digital Standard servos at 6.0V |
| Speed | Below Average Faster than 25% of 1045 Digital Standard servos at 6.0V |
| Weight | Top 10% Lighter than 94% of 1880 Digital Standard servos |
| Running Current | Average Lower draw than 47% of 226 Digital Standard servos at 6.0V |
| Stall Current | Above Average Lower draw than 78% of 570 Digital Standard servos |
Performance Analysis
| Shaft Power | 1.11–2.28 W |
| Power Density | 1.376 W/in³ More power-dense than 28% of 1768 Digital Standard servos |
| Torque Density | 2.4000 oz-in/g Stronger than 30% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 61.69 oz-in/in³ Denser torque than 21% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.13841 (1/sec·g) Faster than 67% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 17.34 Better balanced than 29% of 1034 Digital Standard servos |
| Current-per-Torque Ratio | 0.0245 A/oz-in More efficient than 19% of 331 Digital Standard servos |
| Idle-to-Running Current Ratio | 0.042 Lower idle draw than 58% of 167 Digital Standard servos |
| No-Load vs Stall Current Spread | 10.42 Narrower current spread than 74% of 179 Digital Standard servos |
| Torque Gain per Volt | 23.69%/V More voltage-responsive (torque) than 91% of 873 Digital Standard servos |
| Speed Gain per Volt | 12.82%/V More voltage-responsive (speed) than 34% of 874 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 56% of 1560 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0050 Finer dead band than 1% of 504 Digital Standard servos |
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Reviews (1)
Includes 1 review aggregated from around the web.
Highly regarded in sport plane roundups as a go-to servo for .60-1.20 size models, with strong power for a budget price.
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