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KST X20-7512
Standard

KST X20-7512

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-09-01
Identity
Brand KST
Product Number (add)
Category Hobby
Performance
Torque
8.4V 1,138.16 oz-in
7.4V 1,041.00 oz-in
6.0V 902.20 oz-in
Speed
8.4V 0.11 sec/60°
7.4V 0.12 sec/60°
6.0V 0.14 sec/60°
Running Current (add)
Stall Current 8.8–12.3 A
Physical
Weight 2.47 oz
Dimensions L 1.59 in
W 0.79 in
H 1.50 in
Case Material Aluminum
Drivetrain
Motor Type Brushless
Motor Drive (add)
Gears Steel
Gear Spline/Teeth 25 T
Shaft Size (add)
Rotation Mode (add)
Rotation/Support Dual Bearings
Backlash (add)
Control & Signal
Modulation Digital
Direction (add)
Rotational Range 100°
Mechanical Limit (add)
Pulse Cycle (add)
Pulse Width (add)
Neutral Position 1520 µs
Dead Band (add)
Refresh Rate 333 Hz
Angle Sensor Potentiometer
Control System PWM
Programmable Yes
Signal Voltage 3.3-5V
Electrical & Environment
Operating Voltage 6–8.4 V
Power Source (add)
Regulator Type (add)
Temperature -20–65 °C
Water Rating IP65
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 11.92–19.13 W
Torque Density12.8886 oz-in/g
2nd-highest torque density of 832 Digital Standard servos
Torque-to-Volume Ratio481.64 oz-in/in³
3rd-highest torque-to-volume ratio of 843 Digital Standard servos
Power Density10.213 W/in³
More power-dense than 98% of the 1644 Digital Standard servos in the database
Speed-to-Weight0.10204 (1/sec·g)
Faster than 35% of the 821 Digital Standard servos in the database
Speed-Torque Trade-off126.30
Better balanced than 99% of the 826 Digital Standard servos in the database
Current-per-Torque Ratio0.0136 A/oz-in
More efficient than 59% of the 231 Digital Standard servos in the database
Torque Gain per Volt10.90%/V
More voltage-responsive (torque) than 22% of the 673 Digital Standard servos in the database
Speed Gain per Volt11.36%/V
More voltage-responsive (speed) than 24% of the 687 Digital Standard servos in the database
Voltage Range Width2.4 V
Wider voltage range than 56% of the 1269 Digital Standard servos in the database

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