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Futaba S-U300
Standard

Futaba S-U300

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-09-14
Identity
Brand Futaba
Product Number 01102320-1
Category Hobby
Performance
Torque
6.0V 56.90 oz-in
4.8V 44.40 oz-in Bottom 10%
Speed
6.0V 0.19 sec/60°
4.8V 0.23 sec/60° Bottom 10%
Physical
Weight 1.27 ozTop 10%
Dimensions L 1.591 in
W 0.78 in
H 1.417 in
Case Material Plastic
Drivetrain
Motor Type 3-pole
Gears Plastic
Gear Spline/Teeth 25 T
Shaft Size 6.0 mm
Rotation Mode Positional
Control & Signal
Modulation Digital
Rotational Range 90°
Dead Band 2 µs
Refresh Rate 70 Hz
Angle Sensor Potentiometer
Control System PWM | SBUS2
Programmable Yes
Electrical & Environment
Operating Voltage 4.8–6 V
Power Source Direct
Regulator Type Direct
Water Rating None
Connectivity
Connector Futaba J
Origin
Country of Origin China

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

TorqueBottom 10%
Stronger than 2% of 1043 Digital Standard servos at 4.8V
SpeedBottom 10%
Faster than 4% of 1041 Digital Standard servos at 4.8V
WeightTop 10%
Lighter than 97% of 1902 Digital Standard servos

Performance Analysis

Shaft Power 0.36–0.55 W
Power Density0.315 W/in³
More power-dense than 1% of 1759 Digital Standard servos
Torque Density1.2333 oz-in/g
Stronger than 6% of 1036 Digital Standard servos
Torque-to-Volume Ratio25.25 oz-in/in³
Denser torque than 1% of 1042 Digital Standard servos
Speed-to-Weight0.12077 (1/sec·g)
Faster than 54% of 1033 Digital Standard servos
Speed-Torque Trade-off10.21
Better balanced than 15% of 1031 Digital Standard servos
Torque Gain per Volt23.46%/V
More voltage-responsive (torque) than 91% of 850 Digital Standard servos
Speed Gain per Volt17.54%/V
More voltage-responsive (speed) than 62% of 871 Digital Standard servos
Voltage Range Width1.2 V
Wider voltage range than 14% of 1539 Digital Standard servos

Notes

Futaba's latest flagship model that replaces several of the older models like the S3003.

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Reviews (2)

  • Fahad

    November 18, 2024

    Application(s): Plane

    Comments: It works great with my Futaba receivers, which prefer digital servos.

  • Don L

    November 16, 2024

    Application(s): Surface

    Comments: This is the newer version of the classic S3003. Works great with my Futaba receivers that prefer digital servos.

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