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KST X20-1806
Low Profile

KST X20-1806

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-10-10
Identity
Brand KST
Category Hobby
Performance
Torque
8.4V 249.84 oz-in
7.4V 222.08 oz-in
6.0V 194.32 oz-in Above Average
Speed
8.4V 0.06 sec/60°
7.4V 0.07 sec/60°
6.0V 0.08 sec/60° Above Average
Physical
Weight 1.76 ozAverage
Dimensions L 1.595 in
W 0.787 in
H 0.909 in
Case Material Aluminum
Drivetrain
Motor Type Brushless
Gears Steel
Gear Spline/Teeth 25 T estimate
Rotation Mode Positional
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Rotational Range 200°
Pulse Cycle 3.003 ms
Pulse Width 900-2100 µs
Neutral Position 1520 µs
Refresh Rate 333 Hz
Angle Sensor Potentiometer
Control System PWM
Programmable Yes
Electrical & Environment
Operating Voltage 6–8.4 V
Temperature -20–65 °C
Water Rating IP65
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 74% of 136 Digital Low Profile servos at 6.0V
SpeedAbove Average
Faster than 72% of 135 Digital Low Profile servos at 6.0V
WeightAverage
Lighter than 56% of 251 Digital Low Profile servos

Performance Analysis

Shaft Power 4.49–7.70 W
Power Density6.743 W/in³
More power-dense than 82% of 215 Digital Low Profile servos
Torque Density3.8864 oz-in/g
Stronger than 82% of 136 Digital Low Profile servos
Torque-to-Volume Ratio170.19 oz-in/in³
Denser torque than 85% of 136 Digital Low Profile servos
Speed-to-Weight0.25000 (1/sec·g)
Faster than 69% of 135 Digital Low Profile servos
Speed-Torque Trade-off15.55
Better balanced than 62% of 134 Digital Low Profile servos
Torque Gain per Volt11.90%/V
More voltage-responsive (torque) than 25% of 115 Digital Low Profile servos
Speed Gain per Volt13.89%/V
More voltage-responsive (speed) than 51% of 117 Digital Low Profile servos
Voltage Range Width2.4 V
Wider voltage range than 49% of 223 Digital Low Profile servos

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