Feetech STS5420m

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	ST-5420-C001
Category	Hobby
Performance
Torque	7.4V115.29 oz-in
Speed	7.4V 0.11 sec/60° 7.4V 0.11 sec/60°
Running Current	7.4V0.480 A
Stall Current	≤4.7 ABelow Average
Physical
Weight	2.31 ozAverage
Dimensions	L 1.598 in W 0.787 in H 1.181 in
Case Material	Aluminum
Drivetrain
Motor Type	Coreless
Gears	Steel
Gear Spline/Teeth	25 T
Rotation Mode	Multi-turn
Rotation/Support	Single Bearing
Control & Signal
Modulation	Digital
Direction	Clockwise
Rotational Range	360°
Angle Sensor	Magnetic Encoder
Control System	TTL / SBUS
Electrical & Environment
Operating Voltage	4.8–8.4 V
Temperature	-20–60 °C
Connectivity
Wire Length	150 mm
Origin
Country of Origin	China

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Weight	Average Lighter than 42% of 1902 Digital Standard servos
Stall Current	Below Average Lower draw than 30% of 539 Digital Standard servos

Performance Analysis

Shaft Power	1.92 W
Power Density	1.292 W/in³ More power-dense than 25% of 1759 Digital Standard servos
Torque Density	1.7602 oz-in/g
Torque-to-Volume Ratio	77.56 oz-in/in³
Speed-to-Weight	0.13754 (1/sec·g)
Speed-Torque Trade-off	12.80
Current-per-Torque Ratio	0.0408 A/oz-in
No-Load vs Stall Current Spread	9.79
Voltage Range Width	3.6 V Wider voltage range than 85% of 1539 Digital Standard servos