Feetech HLS3950M

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Technical Specifications

Last Updated: 2026-10-08

Identity
Brand
Product Number	HL-3950-C001
Category	Robotics
Performance
Torque	12.0V694.50 oz-in
Speed	12.0V0.13 sec/60°
Running Current	12.0V0.330 A
Stall Current	≤2.4 AAbove Average
Physical
Weight	2.63 ozBelow Average
Case Material	Aluminum
Drivetrain
Motor Type	Coreless
Gears	Steel
Gear Ratio	345:1
Gear Spline/Teeth	25 T
Shaft Size	5.9 mm
Rotation Mode	Multi-turn
Rotation/Support	Single Bearing
Control & Signal
Modulation	Digital
Rotational Range	360°
Angle Sensor	Magnetic Encoder
Control System	TTL
Programmable	Yes
Resolution	4,096 pulse/rev
Operating Modes	Angle servo mode; motor constant speed mode; motor constant current mode
Electrical & Environment
Operating Voltage	9–12.6 V
Temperature	-20–60 °C
Certification	ROHS
Idle Current	0.024 A
Connectivity
Wire Length	150 mm
Origin
Country of Origin	China

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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.

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Class Comparison

Weight	Below Average Lighter than 21% of 1902 Digital Standard servos
Stall Current	Above Average Lower draw than 80% of 539 Digital Standard servos

Performance Analysis

Shaft Power	9.66 W
Power Density	4.038 W/in³ More power-dense than 71% of 1759 Digital Standard servos
Torque Density	9.3222 oz-in/g
Torque-to-Volume Ratio	290.45 oz-in/in³
Speed-to-Weight	0.10092 (1/sec·g)
Speed-Torque Trade-off	92.37
Current-per-Torque Ratio	0.0035 A/oz-in
Idle-to-Running Current Ratio	0.073
No-Load vs Stall Current Spread	7.27
Voltage Range Width	3.6 V Wider voltage range than 85% of 1539 Digital Standard servos