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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
Speed
6.0V 0.19 sec/60°
4.8V 0.23 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 1.27 oz
Dimensions L 1.59 in
W 0.78 in
H 1.42 in
Case Material Plastic
Drivetrain
Motor Type 3-pole
Motor Drive (add)
Gears Plastic
Gear Spline/Teeth 25 T
Shaft Size 6.0 mm
Rotation Mode Positional
Rotation/Support (add)
Backlash (add)
Control & Signal
Modulation Digital
Direction (add)
Rotational Range 90°
Mechanical Limit (add)
Pulse Cycle (add)
Pulse Width (add)
Neutral Position (add)
Dead Band 2 µs
Refresh Rate 70 Hz
Angle Sensor Potentiometer
Control System PWM | SBUS2
Programmable Yes
Signal Voltage (add)
Electrical & Environment
Operating Voltage 4.8–6 V
Power Source Direct
Regulator Type Direct
Temperature (add)
Water Rating None
Certification (add)
Idle Current (add)
Connectivity
Connector Futaba J
Wire Length (add)
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.

Performance Analysis

Shaft Power 0.36–0.55 W
Torque Density1.2333 oz-in/g
Stronger than 9% of the 831 Digital Standard servos in the database
Torque-to-Volume Ratio25.25 oz-in/in³
Denser torque than 3% of the 842 Digital Standard servos in the database
Power Density0.315 W/in³
More power-dense than 1% of the 1643 Digital Standard servos in the database
Speed-to-Weight0.12077 (1/sec·g)
Faster than 52% of the 820 Digital Standard servos in the database
Speed-Torque Trade-off10.21
Better balanced than 18% of the 825 Digital Standard servos in the database
Torque Gain per Volt23.46%/V
More voltage-responsive (torque) than 90% of the 672 Digital Standard servos in the database
Speed Gain per Volt17.54%/V
More voltage-responsive (speed) than 63% of the 686 Digital Standard servos in the database
Voltage Range Width1.2 V
Wider voltage range than 15% of the 1268 Digital Standard servos in the database

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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