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KST MS3509
Standard

KST MS3509

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-10-10
Identity
Brand KST
Category Hobby
Performance
Torque
8.4V 485.80 oz-in
7.4V 444.16 oz-in
6.0V 416.40 oz-in Above Average
Speed
8.4V 0.12 sec/60°
7.4V 0.13 sec/60°
6.0V 0.14 sec/60° Average
Physical
Weight 2.75 ozBelow Average
Dimensions L 1.595 in
W 0.827 in
H 1.516 in
Case Material Aluminum
Drivetrain
Motor Type Coreless
Gears Steel
Gear Spline/Teeth 25 T estimate
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Rotational Range 200°
Pulse Width 500-2500 µs
Neutral Position 1500 µs
Control System PWM
Electrical & Environment
Operating Voltage 6–8.4 V
Temperature -10–65 °C
Connectivity
Connector JR (Universal) estimate

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

TorqueAbove Average
Stronger than 85% of 1043 Digital Standard servos at 6.0V
SpeedAverage
Faster than 49% of 1041 Digital Standard servos at 6.0V
WeightBelow Average
Lighter than 16% of 1902 Digital Standard servos

Performance Analysis

Shaft Power 5.50–7.49 W
Power Density3.746 W/in³
More power-dense than 68% of 1759 Digital Standard servos
Torque Density5.3385 oz-in/g
Stronger than 81% of 1036 Digital Standard servos
Torque-to-Volume Ratio208.39 oz-in/in³
Denser torque than 83% of 1042 Digital Standard servos
Speed-to-Weight0.09158 (1/sec·g)
Faster than 26% of 1033 Digital Standard servos
Speed-Torque Trade-off58.29
Better balanced than 83% of 1031 Digital Standard servos
Torque Gain per Volt6.94%/V
More voltage-responsive (torque) than 8% of 850 Digital Standard servos
Speed Gain per Volt6.94%/V
More voltage-responsive (speed) than 5% of 871 Digital Standard servos
Voltage Range Width2.4 V
Wider voltage range than 59% of 1539 Digital Standard servos

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