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Futaba S9551
Low Profile Discontinued

Futaba S9551

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-09-14
Identity
Brand Futaba
Product Number FUTM0661
Category Hobby
Discontinued Yes
Performance
Torque
6.0V 122.00 oz-in
4.8V 98.00 oz-in
Speed
6.0V 0.11 sec/60°
4.8V 0.14 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 1.59 oz
Dimensions L 1.61 in
W 0.79 in
H 0.98 in
Case Material Plastic
Drivetrain
Motor Type Coreless
Motor Drive (add)
Gears Metal
Gear Spline/Teeth 25 T estimate
Shaft Size (add)
Rotation Mode (add)
Rotation/Support Dual Bearings
Backlash (add)
Control & Signal
Modulation Digital
Direction (add)
Rotational Range (add)
Mechanical Limit (add)
Pulse Cycle (add)
Pulse Width (add)
Neutral Position (add)
Dead Band (add)
Refresh Rate (add)
Angle Sensor (add)
Control System (add)
Programmable (add)
Signal Voltage (add)
Electrical & Environment
Operating Voltage 4.8–6 V
Power Source (add)
Regulator Type (add)
Temperature (add)
Water Rating Water Resistant
Certification (add)
Idle Current (add)
Connectivity
Connector (add)
Wire Length (add)
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 1.29–2.05 W
Torque Density2.1778 oz-in/g
Stronger than 26% of the 96 Digital Low Profile servos in the database
Torque-to-Volume Ratio78.62 oz-in/in³
Denser torque than 33% of the 96 Digital Low Profile servos in the database
Power Density1.645 W/in³
More power-dense than 24% of the 188 Digital Low Profile servos in the database
Speed-to-Weight0.15873 (1/sec·g)
Faster than 18% of the 96 Digital Low Profile servos in the database
Speed-Torque Trade-off13.72
Better balanced than 51% of the 94 Digital Low Profile servos in the database
Torque Gain per Volt20.41%/V
More voltage-responsive (torque) than 70% of the 75 Digital Low Profile servos in the database
Speed Gain per Volt22.73%/V
More voltage-responsive (speed) than 88% of the 79 Digital Low Profile servos in the database
Voltage Range Width1.2 V
Wider voltage range than 21% of the 165 Digital Low Profile servos in the database

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