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Futaba S-U301
Standard

Futaba S-U301

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-08
Identity
Brand Futaba
Product Number 01102322-1
Category Hobby
Performance
Torque
8.4V 54.20 oz-in
7.4V 54.20 oz-in
6.6V 48.60 oz-in
4.8V 48.60 oz-in Bottom 10%
Speed
8.4V 0.16 sec/60°
7.4V 0.16 sec/60°
6.6V 0.18 sec/60°
4.8V 0.18 sec/60° Below Average
Physical
Weight 1.27 ozTop 10%
Dimensions L 1.575 in
W 0.787 in
H 1.421 in
Case Material Plastic
Drivetrain
Motor Type 3-pole
Gears Nylon
Gear Spline/Teeth 25 T
Control & Signal
Modulation Digital
Control System PWM | SBUS2
Programmable Yes
Electrical & Environment
Operating Voltage 4.8–8.4 V

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 3% of 1043 Digital Standard servos at 4.8V
SpeedBelow Average
Faster than 21% of 1041 Digital Standard servos at 4.8V
WeightTop 10%
Lighter than 97% of 1902 Digital Standard servos

Performance Analysis

Shaft Power 0.50–0.63 W
Power Density0.356 W/in³
More power-dense than 2% of 1759 Digital Standard servos
Torque Density1.3500 oz-in/g
Stronger than 8% of 1036 Digital Standard servos
Torque-to-Volume Ratio27.59 oz-in/in³
Denser torque than 2% of 1042 Digital Standard servos
Speed-to-Weight0.15432 (1/sec·g)
Faster than 73% of 1033 Digital Standard servos
Speed-Torque Trade-off8.75
Better balanced than 11% of 1031 Digital Standard servos
Torque Gain per Volt3.20%/V
More voltage-responsive (torque) than 2% of 850 Digital Standard servos
Speed Gain per Volt3.48%/V
More voltage-responsive (speed) than 1% of 871 Digital Standard servos
Voltage Range Width3.6 V
Wider voltage range than 88% of 1539 Digital Standard servos

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