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Technical Specifications
Last Updated: 2026-07-10Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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| Identity | |
| Brand |  |
| Product Number | (add) |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
27.77 oz-in
2.00 kg-cm
0.2 N-m
4.8V
25.00 oz-in
1.80 kg-cm
0.2 N-m
|
| 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
|
| Running Current | (add) |
| Stall Current | (add) |
| Shaft Power | 0.39–0.51 W |
| Physical | |
| Weight | 0.42 oz12.0 g |
| Dimensions |
L 0.89 in W 0.45 in H 0.97 in L 22.5 mm W 11.5 mm H 24.6 mm |
| Case Material | (add) |
| Drivetrain | |
| Motor Type | Brushed |
| Motor Drive | (add) |
| Gears | Metal |
| Gear Spline/Teeth | (add) |
| Rotation Mode | (add) |
| Rotation/Support | Single Bearing |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Digital |
| Direction | (add) |
| Rotational Range | 60° |
| Mechanical Limit | (add) |
| Pulse Cycle | 4 ms |
| Pulse Width | 850-2150 µs |
| Neutral Position | (add) |
| Dead Band | 4 µs |
| Refresh Rate | (add) |
| Angle Sensor | (add) |
| Control System | PWM |
| Programmable | (add) |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 4.5–6 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | (add) |
| Certification | (add) |
| Idle Current | 5.000 A5,000 mA |
| Connectivity | |
| Connector | (add) |
| Wire Length | 210 mm8.27 in |
| Origin | |
| Country of Origin | (add) |
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.
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Reviews (2)
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Josh
October 23, 2016Application(s): T-Rex 450 and Tarot Pro 450
Comments: I have never had an issue with these servos. Yes they are inexpensive but they still perform as well my align servos. I have over a thousand hours on my Tarot 450 that run these servos for the cyclic and rudder. They have never once failed me. I plan to buy more to begin my next project.
2Doggs
September 26, 2012Application(s): Cyclic servos on 450 Pro heli
Comments: Of four 933's I bought for my 450, one jittered around neutral. I always buy at least one spare servo when using cheap servos.
They are a perfect fit in the 450 Pro, and the gear train is reasonably tight. On a servo tester, the speed shows as 0.13s @ 6v, rather than the claimed 0.1s. They work pretty well on the 450, however.
The cases are fragile, though, and break quite easily in a crash. I fitted some weak HK blue servo arms which helped protect them until my last big crash, when the mounting lugs broke off both aileron servos.
As a stop gap, I even rebuilt the heli with the aileron servos fixed to the main frames with double sided tape, which actually worked well.
I ended up buying Align DS410's to replace them, however, and the heli flies noticebly better with the 410's.
I rate the 933's four star for their decent performance at a low price - the cases are too weak to merit a five star rating.