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Futaba BLS173SV
Mini Discontinued

Futaba BLS173SV

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-09-17
Identity
Brand Futaba
Product Number 01102172-1
Category Hobby
Discontinued Yes
Performance
Torque
7.4V 105.60 oz-in
6.6V 94.50 oz-in
6.0V 86.00 oz-in
Speed
7.4V 0.10 sec/60°
6.6V 0.11 sec/60°
6.0V 0.12 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 0.99 oz
Dimensions L 1.30 in
W 0.59 in
H 1.07 in
Case Material (add)
Drivetrain
Motor Type Brushless
Motor Drive (add)
Gears Metal
Gear Spline/Teeth (add)
Shaft Size 6.0 mm
Rotation Mode Positional
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 SBUS2
Programmable Yes
Signal Voltage (add)
Electrical & Environment
Operating Voltage 6–7.4 V
Power Source External
Regulator Type Direct
Temperature (add)
Water Rating None
Certification (add)
Idle Current (add)
Connectivity
Connector Futaba J
Wire Length (add)
Origin
Country of Origin Japan

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 1.33–1.95 W
Torque Density3.0714 oz-in/g
Stronger than 72% of the 219 Digital Mini servos in the database
Torque-to-Volume Ratio104.99 oz-in/in³
Denser torque than 70% of the 224 Digital Mini servos in the database
Power Density2.384 W/in³
More power-dense than 71% of the 425 Digital Mini servos in the database
Speed-to-Weight0.29762 (1/sec·g)
Faster than 45% of the 220 Digital Mini servos in the database
Speed-Torque Trade-off10.32
Better balanced than 68% of the 223 Digital Mini servos in the database
Torque Gain per Volt16.28%/V
More voltage-responsive (torque) than 55% of the 190 Digital Mini servos in the database
Speed Gain per Volt14.29%/V
More voltage-responsive (speed) than 37% of the 190 Digital Mini servos in the database
Voltage Range Width1.4 V
Wider voltage range than 47% of the 288 Digital Mini servos in the database

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Reviews (1)

  • Robin

    April 23, 2019

    Application(s): For moving cooling ducts fans on a 210cc Engine used at 1/4 strength

    Comments: 2 of Servo's Failed within 5 to 6 Hour of use. Pretty poor.

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