Futaba S3171SB

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	FUTM0461
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 65.14 oz-in 4.8V 52.39 oz-in Average
Speed	6.0V 0.20 sec/60° 4.8V 0.24 sec/60° Bottom 10%
Physical
Weight	0.71 ozAbove Average
Dimensions	L 1.181 in W 0.425 in H 1.142 in
Drivetrain
Motor Type	Brushed
Gears	Metal
Gear Spline/Teeth	25 T
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Rotational Range	180°
Pulse Width	920-2120 µs
Neutral Position	1520 µs
Control System	SBUS
Programmable	Yes
Electrical & Environment
Operating Voltage	4.8–6 V
Temperature	-15–55 °C
Connectivity
Connector	Futaba J

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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.

Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Average Stronger than 43% of 262 Digital Mini servos at 4.8V
Speed	Bottom 10% Faster than 1% of 263 Digital Mini servos at 4.8V
Weight	Above Average Lighter than 74% of 466 Digital Mini servos

Performance Analysis

Shaft Power	0.40–0.60 W
Power Density	1.051 W/in³ More power-dense than 20% of 440 Digital Mini servos
Torque Density	2.6196 oz-in/g Stronger than 60% of 258 Digital Mini servos
Torque-to-Volume Ratio	91.40 oz-in/in³ Denser torque than 63% of 262 Digital Mini servos
Speed-to-Weight	0.20833 (1/sec·g) Faster than 17% of 259 Digital Mini servos
Speed-Torque Trade-off	12.57 Better balanced than 82% of 261 Digital Mini servos
Torque Gain per Volt	20.27%/V More voltage-responsive (torque) than 72% of 232 Digital Mini servos
Speed Gain per Volt	16.67%/V More voltage-responsive (speed) than 52% of 235 Digital Mini servos
Voltage Range Width	1.2 V Wider voltage range than 20% of 351 Digital Mini servos