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FeeTech FS0403
Micro

FeeTech FS0403

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-09
Identity
Brand FeeTech
Category Hobby
Performance
Torque
6.0V 9.70 oz-in
4.8V 8.30 oz-in Bottom 10%
Speed
6.0V 0.08 sec/60°
4.8V 0.09 sec/60° Top 10%
Running Current
6.0V 0.070 A
4.8V 0.060 A Top 10%
Stall Current 0.5–0.6 AAverage
Physical
Weight 0.18 ozAbove Average
Dimensions L 0.787 in
W 0.327 in
H 0.76 in
Case Material Plastic
Drivetrain
Motor Type Brushed
Gears Plastic
Gear Spline/Teeth 20 T
Rotation Mode Positional
Rotation/Support Bushing
Control & Signal
Modulation Analog
Rotational Range 120°
Pulse Width 900-2100 µs
Neutral Position 1500 µs
Dead Band 4 µs
Control System PWM
Signal Voltage 3-5V
Electrical & Environment
Operating Voltage 4.8–6 V
Temperature -15–70 °C
Idle Current 0.006 A
Connectivity
Connector JR (Universal) estimate
Wire Length 150 mm
Origin
Country of Origin China

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.

Class Comparison

TorqueBottom 10%
Stronger than 6% of 170 Analog Micro servos at 4.8V
SpeedTop 10%
Faster than 93% of 170 Analog Micro servos at 4.8V
WeightAbove Average
Lighter than 77% of 346 Analog Micro servos
Running CurrentTop 10%
Lower draw than 97% of 33 Analog Micro servos at 4.8V
Stall CurrentAverage
Lower draw than 58% of 54 Analog Micro servos

Performance Analysis

Shaft Power 0.17–0.22 W
Power Density1.146 W/in³
More power-dense than 73% of 333 Analog Micro servos
Torque Density1.6600 oz-in/g
Stronger than 12% of 170 Analog Micro servos
Torque-to-Volume Ratio42.44 oz-in/in³
Denser torque than 32% of 170 Analog Micro servos
Speed-to-Weight2.22222 (1/sec·g)
Faster than 92% of 170 Analog Micro servos
Speed-Torque Trade-off0.75
Better balanced than 2% of 169 Analog Micro servos
Current-per-Torque Ratio0.0723 A/oz-in
More efficient than 5% of 45 Analog Micro servos
Idle-to-Running Current Ratio0.100
Lower idle draw than 18% of 23 Analog Micro servos
No-Load vs Stall Current Spread10.00
Narrower current spread than 0% of 25 Analog Micro servos
Torque Gain per Volt14.06%/V
More voltage-responsive (torque) than 44% of 96 Analog Micro servos
Speed Gain per Volt10.41%/V
More voltage-responsive (speed) than 22% of 96 Analog Micro servos
Voltage Range Width1.2 V
Wider voltage range than 38% of 182 Analog Micro servos
Dead-Band-to-Pulse-Width Ratio0.0033
Finer dead band than 74% of 43 Analog Micro servos

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