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Technical Specifications
Last Updated: 2026-09-14Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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| Identity | |
| Brand |  |
| Product Number | FUTM0045 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
124.00 oz-in
8.93 kg-cm
0.9 N-m
4.8V
99.00 oz-in
7.13 kg-cm
0.7 N-m
|
| Speed |
6.0V
0.20 sec/60°
300.0 deg/s
50.0 RPM
4.8V
0.25 sec/60°
240.0 deg/s
40.0 RPM
|
| Running Current | (add) |
| Stall Current | (add) |
| Physical | |
| Weight | 1.66 oz47.0 g |
| Dimensions |
L 1.57 in W 0.79 in H 1.50 in L 39.9 mm W 20.1 mm H 38.1 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | 3-pole |
| Motor Drive | (add) |
| Gears | Metal |
| Gear Spline/Teeth | 25 T estimate |
| Shaft Size | (add) |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Analog |
| Direction | Counterclockwise |
| Rotational Range | 90° |
| Mechanical Limit | (add) |
| Pulse Cycle | (add) |
| Pulse Width | 920-2120 µs |
| Neutral Position | 1520 µs |
| Dead Band | (add) |
| Refresh Rate | (add) |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | No |
| Signal Voltage | 3-5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Power Source | Ni-CD |
| Regulator Type | Direct |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | (add) |
| Certification | (add) |
| Idle Current | (add) |
| Connectivity | |
| Connector | Futaba J |
| Wire Length | 200 mm7.87 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 | 0.73–1.15 W |
| Torque Density | 2.1064 oz-in/g Stronger than 68% of the 156 Analog Standard servos in the database |
| Torque-to-Volume Ratio | 53.21 oz-in/in³ Denser torque than 66% of the 156 Analog Standard servos in the database |
| Power Density | 0.616 W/in³ More power-dense than 55% of the 421 Analog Standard servos in the database |
| Speed-to-Weight | 0.08511 (1/sec·g) Faster than 12% of the 155 Analog Standard servos in the database |
| Speed-Torque Trade-off | 24.75 Better balanced than 79% of the 155 Analog Standard servos in the database |
| Torque Gain per Volt | 21.04%/V More voltage-responsive (torque) than 84% of the 120 Analog Standard servos in the database |
| Speed Gain per Volt | 20.83%/V More voltage-responsive (speed) than 80% of the 121 Analog Standard servos in the database |
| Voltage Range Width | 1.2 V Wider voltage range than 72% of the 185 Analog Standard servos in the database |
Notes
This servo only works with NiCd batteries.
Quick Actions
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Reviews (6)
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Vanderlei
July 4, 2017Application(s): Airplane scale 50cc _ giant P-47
Igby
September 19, 2015Application(s): Considering the S3305 for my new Escapade MX.
Comments: Concerned about the Nicd battery issue. Can I use a LiFe 2000?
Aota
February 3, 2015Application(s): Steering on Axial SXC10
Comments: I have this servo for almost 6 years, and never had any trouble with it, it was on my TT-01 Rally car, on my M-03 Mini chassis and for a long time on my Axial SCX-10 Land rover, and it keeps working like new!
collector1231
October 20, 2013Application(s): OFNA Nexx10SC Steering
Comments: This servo is perfect for the application it is in. It feels great, hasn't broken for 1 year now, metal gear, and it is cheap compared to others.
brutisoe
January 27, 2012Application(s): losi 8ight-t
Comments: they say nicad only because of the amp draw ! but a good high mah lipo bat is fine, just use a good voltage reg with a high amp cap !
Servo Question?
June 13, 2010Application(s): Used on all surfaces on a 90 size 3-d arf airplane(exc. throt.)
Comments: I have been using these servos (s3305) in my Sig Mayhem 3-d plane w/120 Saito four stroke engine. I am more of a Sport flyer than any 3-d but obtained the airplane used.My point to make is: I have been using a 2-cell lipo 7.4volt 2000 mah 8c rated battery with a mpI voltage regulator (down to 6volts) Till now ive had NO problem but I see that Futaba suggests "nicad only" usage..... Can you explain????