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KST A20-4515
Standard

KST A20-4515

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 694.00 oz-in
7.4V 624.60 oz-in
6.0V 499.68 oz-in
Speed
8.4V 0.13 sec/60°
7.4V 0.15 sec/60°
6.0V 0.19 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 2.82 oz
Dimensions L 1.59 in
W 0.79 in
H 1.65 in
Case Material (add)
Drivetrain
Motor Type Brushless
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 (add)
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 4.86–9.87 W
Torque Density6.2460 oz-in/g
Stronger than 89% of the 832 Digital Standard servos in the database
Torque-to-Volume Ratio240.70 oz-in/in³
Denser torque than 89% of the 843 Digital Standard servos in the database
Power Density4.755 W/in³
More power-dense than 77% of the 1644 Digital Standard servos in the database
Speed-to-Weight0.06579 (1/sec·g)
Faster than 4% of the 821 Digital Standard servos in the database
Speed-Torque Trade-off94.94
Better balanced than 95% of the 826 Digital Standard servos in the database
Torque Gain per Volt16.20%/V
More voltage-responsive (torque) than 54% of the 673 Digital Standard servos in the database
Speed Gain per Volt19.22%/V
More voltage-responsive (speed) than 76% of the 687 Digital Standard servos in the database
Voltage Range Width2.4 V
Wider voltage range than 58% of the 1269 Digital Standard servos in the database

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