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Technical Specifications
Last Updated: 2026-10-22| Identity | |
| Brand |  |
| Product Number | SPMSA3040 |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
28.00 oz-in
2.02 kg-cm
0.2 N-m
4.8V
23.00 oz-in
1.66 kg-cm
0.2 N-m
Below Average
|
| Speed |
6.0V
0.10 sec/60°
600.0 deg/s
100.0 RPM
4.8V
0.12 sec/60°
500.0 deg/s
83.3 RPM
Average
|
| Physical | |
| Weight | 0.44 oz12.6 gAverage |
| Dimensions |
L 0.929 in W 0.453 in H 1.004 in L 23.6 mm W 11.5 mm H 25.5 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | Coreless Brushed |
| Gears | Nylon |
| Gear Spline/Teeth | 21 T |
| Rotation Mode | Positional |
| Rotation/Support | Single Bearing |
| Control & Signal | |
| Modulation | Digital |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Connectivity | |
| Connector | Z |
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 34% of 349 Digital Micro servos at 4.8V |
| Speed | Average Faster than 46% of 347 Digital Micro servos at 4.8V |
| Weight | Average Lighter than 39% of 597 Digital Micro servos |
Performance Analysis
| Shaft Power | 0.35–0.52 W |
| Power Density | 1.225 W/in³ More power-dense than 26% of 563 Digital Micro servos |
| Torque Density | 1.8254 oz-in/g Stronger than 19% of 349 Digital Micro servos |
| Torque-to-Volume Ratio | 54.44 oz-in/in³ Denser torque than 23% of 345 Digital Micro servos |
| Speed-to-Weight | 0.66138 (1/sec·g) Faster than 41% of 347 Digital Micro servos |
| Speed-Torque Trade-off | 2.76 Better balanced than 39% of 345 Digital Micro servos |
| Torque Gain per Volt | 18.12%/V More voltage-responsive (torque) than 57% of 290 Digital Micro servos |
| Speed Gain per Volt | 16.67%/V More voltage-responsive (speed) than 46% of 295 Digital Micro servos |
| Voltage Range Width | 1.2 V Wider voltage range than 31% of 496 Digital Micro servos |
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Reviews (2)
Includes 1 review aggregated from around the web.
There are few reviews for this servo on the web. Amazon reviewers call it a solid micro servo for the price, a great upgrade and an excellent replacement, including for 1/24 scale crawlers and a Traxxas LaTrax Teton. One buyer notes the spline tooth count was not listed, and another found it a little pricey. No failures were reported.
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ABADIE
October 28, 2015Application(s): i need the courant max at 6v, or the power (w, for the SPEKTRUM A3040. Thank you
Comments: we want to use this engine for comand th position of spot light