FeeTech FS90MG

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*Based on known specs.

Technical Specifications

Last Updated: 2026-07-28

Identity
Brand
Category	Hobby
Performance
Torque	6.0V 25.00 oz-in 4.8V 20.90 oz-in Below Average
Speed	6.0V 0.10 sec/60° 4.8V 0.12 sec/60° Average
Physical
Weight	0.44 ozAverage
Dimensions	L 0.886 in W 0.476 in H 1.051 in
Drivetrain
Motor Type	Brushed
Gears	Metal
Rotation/Support	Bushing
Control & Signal
Modulation	Digital
Rotational Range	180°
Pulse Width	500-2500 µs
Neutral Position	1500 µs
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–6 V
Temperature	-1–70 °C
Idle Current	5.000 A
Connectivity
Connector	JR (Universal) estimate
Wire Length	250 mm
Origin
Country of Origin	China

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Below Average Stronger than 31% of 245 Digital Micro servos at 4.8V
Speed	Average Faster than 43% of 245 Digital Micro servos at 4.8V
Weight	Average Lighter than 35% of 576 Digital Micro servos

Performance Analysis

Shaft Power	0.32–0.46 W
Power Density	1.043 W/in³ More power-dense than 19% of 545 Digital Micro servos
Torque Density	1.6720 oz-in/g Stronger than 20% of 243 Digital Micro servos
Torque-to-Volume Ratio	47.15 oz-in/in³ Denser torque than 20% of 245 Digital Micro servos
Speed-to-Weight	0.66667 (1/sec·g) Faster than 40% of 243 Digital Micro servos
Speed-Torque Trade-off	2.51 Better balanced than 37% of 245 Digital Micro servos
Torque Gain per Volt	16.35%/V More voltage-responsive (torque) than 43% of 196 Digital Micro servos
Speed Gain per Volt	16.67%/V More voltage-responsive (speed) than 49% of 198 Digital Micro servos
Voltage Range Width	1.2 V Wider voltage range than 29% of 410 Digital Micro servos