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Technical Specifications
Last Updated: 2026-09-24Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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| Identity | |
| Brand |  |
| Product Number | FUTM0033 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
43.00 oz-in
3.10 kg-cm
0.3 N-m
4.8V
35.00 oz-in
2.52 kg-cm
0.2 N-m
|
| Speed |
6.0V
0.14 sec/60°
428.6 deg/s
71.4 RPM
4.8V
0.18 sec/60°
333.3 deg/s
55.6 RPM
|
| Running Current | (add) |
| Stall Current | (add) |
| Physical | |
| Weight | 0.60 oz17.0 g |
| Dimensions |
L 1.05 in W 0.50 in H 1.12 in L 26.7 mm W 12.7 mm H 28.4 mm |
| Case Material | (add) |
| Drivetrain | |
| Motor Type | Brushed |
| Motor Drive | (add) |
| Gears | Nylon |
| Gear Spline/Teeth | 21 T estimate |
| Shaft Size | (add) |
| Rotation Mode | Positional |
| Rotation/Support | Bushing |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Analog |
| Direction | (add) |
| Rotational Range | (add) |
| Mechanical Limit | (add) |
| Pulse Cycle | (add) |
| Pulse Width | (add) |
| Neutral Position | (add) |
| Dead Band | (add) |
| Refresh Rate | (add) |
| Angle Sensor | (add) |
| Control System | PWM |
| Programmable | (add) |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | (add) |
| Water Rating | (add) |
| Certification | (add) |
| Idle Current | (add) |
| Connectivity | |
| Connector | Futaba J |
| Wire Length | 150 mm5.91 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.
Performance Analysis
| Shaft Power | 0.36–0.57 W |
| Torque Density | 2.0588 oz-in/g Stronger than 55% of the 67 Analog Mini servos in the database |
| Torque-to-Volume Ratio | 59.52 oz-in/in³ Denser torque than 71% of the 67 Analog Mini servos in the database |
| Power Density | 0.966 W/in³ More power-dense than 67% of the 166 Analog Mini servos in the database |
| Speed-to-Weight | 0.32680 (1/sec·g) Faster than 35% of the 67 Analog Mini servos in the database |
| Speed-Torque Trade-off | 6.30 Better balanced than 76% of the 67 Analog Mini servos in the database |
| Torque Gain per Volt | 19.05%/V More voltage-responsive (torque) than 80% of the 46 Analog Mini servos in the database |
| Speed Gain per Volt | 23.83%/V 2nd-highest speed gain per volt of 47 Analog Mini servos |
| Voltage Range Width | 1.2 V Wider voltage range than 87% of the 77 Analog Mini servos in the database |
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Reviews (2)
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Baz
April 17, 2015Application(s): Activating the Retract air diverter switch
Comments: This is a good servo but make sure on a low throw application you have the end points set very low to start. You can move the end points out to get the throw you want. I have a air diverter switch that I ruined two of these servos (gear trains)with. The gears strip out really easily if they dead end.
John F Hendry
January 24, 2015Application(s): Full flying elevator for 3.75-4 pound 3000m Bird of Time glider.
Comments: At the time I purchased the S3101 it was one of the best servos in it's size available but the particular servo I received had a little play in the gears equal to 2 maybe 3 clicks of trim on a DX9, so not much except it's on a full flying elevator so "almost" noticeable and not good for an accurate trim setting and was not perfect like the S3114's that had no play whatsoever I had intended to use and were called for. (The S3114's were too small and stronger than their mounts even with DS tape for such a large glider so I used the weight required to mount them on a larger servo) I may have gotten a loose set of gears and the amount of play is very small and would likely be called normal without the S3114's to compare them to. So I'll take advantage of time and replace it with a lighter weight modern digital servo. But it is quite powerful and did the job well with that one exception. JFH^^