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Technical Specifications
Last Updated: 2026-10-21| Identity | |
| Brand |  |
| Product Number | TGY-390DMH |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
74.99 oz-in
5.40 kg-cm
0.5 N-m
4.8V
63.88 oz-in
4.60 kg-cm
0.5 N-m
Average
|
| Speed |
6.0V
0.11 sec/60°
545.5 deg/s
90.9 RPM
4.8V
0.14 sec/60°
428.6 deg/s
71.4 RPM
Below Average
|
| Physical | |
| Weight | 0.79 oz22.5 gAverage |
| Dimensions |
L 1.142 in W 0.512 in H 1.181 in L 29.0 mm W 13.0 mm H 30.0 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Pulse Cycle | 3 ms |
| Neutral Position | 1520 µs |
| Refresh Rate | 200 Hz |
| Electrical & Environment | |
| Operating Voltage | 4.8–6.6 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
| Torque | Average Stronger than 57% of 290 Digital Mini servos at 4.8V |
| Speed | Below Average Faster than 34% of 293 Digital Mini servos at 4.8V |
| Weight | Average Lighter than 61% of 505 Digital Mini servos |
Performance Analysis
| Shaft Power | 0.84–1.26 W |
| Power Density | 1.825 W/in³ More power-dense than 52% of 482 Digital Mini servos |
| Torque Density | 2.8391 oz-in/g Stronger than 66% of 286 Digital Mini servos |
| Torque-to-Volume Ratio | 92.51 oz-in/in³ Denser torque than 62% of 288 Digital Mini servos |
| Speed-to-Weight | 0.31746 (1/sec·g) Faster than 49% of 289 Digital Mini servos |
| Speed-Torque Trade-off | 8.94 Better balanced than 62% of 288 Digital Mini servos |
| Voltage Range Width | 1.8 V Wider voltage range than 46% of 405 Digital Mini servos |
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Reviews (5)
Includes 1 review aggregated from around the web.
There are very few reviews for this servo on the web. A Russian RC forum member recommends it as a proper upgrade for a weak 1/18 stock servo, though pricey.
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Robert
March 17, 2017Application(s): airplane (4 servos)
Comments: 2 new servos are out of service before the first flight ! I shall throw the other 2 to trash
LYNXDAMPER
March 3, 2017Application(s): It powers the elevator on my Aether 3.7m electric glider
Comments: I mistakenly applied a 3cell LiFe to my model instead of 2cell, this servo still operates perfectly!
Kippkin
December 24, 2015Application(s): 1/16 modded slash
Comments: Speed is fast and power great, I would like a speed curve,,,,slow initial and after 1/10th increase in speed curve steer....and most important is fail to return to center from left or right approx. 1-2 degrees just enough to lose control at 20+ through corners...so now I have to hope a servo programmer works and if does I wouldn't want a different servo but a hi-tech titanium .
vesper
June 8, 2014Application(s): for 1/16 cars, e-revo, monster bestle, etc.
Comments: Very strong, good pull strength and toughness. Best option to replace 2080.