FS5103B - 6V 3.2kg.cm 180deg Analog Servo Motor

Feetech FS5103B Standard Analog Servo – High-Torque Precision for RC & Robotics

The Feetech FS5103B is a robust, high-performance standard-sized analog servo designed for pilots and engineers who require a dependable balance of power and smooth mechanical movement. Delivering a peak stall torque of 3.2kg.cm, this servo is a versatile workhorse for RC airplanes, steering in 1/10 scale vehicles, and articulating robotic joints.

Engineered with a high-durability PA+Fiberglass case and POM plastic gears, the FS5103B is built to handle mechanical stress while maintaining a lightweight profile. The inclusion of a ball bearing on the output shaft significantly reduces friction, ensuring consistent precision over a wide operating voltage range of 4.8V to 8.4V.

Key Highlights:

• Reliable Torque Output: Delivers up to 3.2kg.cm of torque at 6V, providing the necessary strength for control surfaces and robotic actuators.

• Ultra-Smooth Travel: Integrated ball bearings ensure fluid rotation and minimize wear on the internal gear train for a longer service life.

• Wide Voltage Compatibility: Optimized for 6V systems but fully capable of operating between 4.8V and 8.4V, offering flexibility for different battery configurations.

• Rugged Construction: Features a reinforced Nylon/Fiberglass housing and high-strength POM gears to withstand the rigors of outdoor RC use.

• Extensive Throw: Capable of a wide 180°± 5° range (at 600→2400μsec), providing the extra travel needed for complex mechanical linkages.

• Standard 25T Spline: Uses the industry-standard 25-tooth output shaft, making it compatible with a vast array of aftermarket aluminum and plastic servo horns.

Technical Specifications

Pro-Builder Tip:

The FS5103B is an excellent choice for the rudder or elevator on 40-60 size glow/electric aircraft. To get the most out of the analog amplifier, ensure your linkage is free-moving; any mechanical binding will cause the servo to draw excess current and may reduce its centering precision.

Partsbaba Quality Assurance: All Feetech servos are 100% genuine and original. We provide a 14-day replacement warranty against manufacturing defects, so you can integrate this servo into your next project with total confidence.