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KST MS665
Standard

KST MS665

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand KST
Product Number (add)
Category Hobby
Performance
Torque
8.4V 104.10 oz-in
7.4V 94.38 oz-in
6.0V 80.50 oz-in
Speed
8.4V 0.04 sec/60°
7.4V 0.05 sec/60°
6.0V 0.05 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 2.43 oz
Dimensions L 1.59 in
W 0.79 in
H 1.50 in
Case Material (add)
Drivetrain
Motor Type Coreless
Motor Drive (add)
Gears Steel
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 760 µs
Dead Band (add)
Refresh Rate (add)
Angle Sensor (add)
Control System PWM
Programmable (add)
Signal Voltage (add)
Electrical & Environment
Operating Voltage 6–8.4 V
Power Source (add)
Regulator Type (add)
Temperature (add)
Water Rating (add)
Certification (add)
Idle Current (add)
Connectivity
Connector JR (Universal) estimate
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 2.98–4.81 W
Torque Density1.1667 oz-in/g
Stronger than 8% of the 831 Digital Standard servos in the database
Torque-to-Volume Ratio42.87 oz-in/in³
Denser torque than 12% of the 842 Digital Standard servos in the database
Power Density2.562 W/in³
More power-dense than 53% of the 1643 Digital Standard servos in the database
Speed-to-Weight0.28986 (1/sec·g)
Faster than 92% of the 820 Digital Standard servos in the database
Speed-Torque Trade-off4.03
Better balanced than 8% of the 825 Digital Standard servos in the database
Torque Gain per Volt12.22%/V
More voltage-responsive (torque) than 29% of the 672 Digital Standard servos in the database
Speed Gain per Volt10.42%/V
More voltage-responsive (speed) than 20% of the 686 Digital Standard servos in the database
Voltage Range Width2.4 V
Wider voltage range than 57% of the 1268 Digital Standard servos in the database

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