FEETECH FT90M-FB Servo Motor

The FT90M-FB is a high-performance micro 6V 2kg-class digital servo engineered with a reliable core motor and a lightweight ABS case. Designed for highly integrated feedback control, it features robust metal gears, a 20T horn gear spline, and durable plastic/POM horns with no mechanical limit angles. Operating within a 3–8.4V voltage range, this digital servo delivers a peak stall torque of 2.15kg.cm and a rated torque of 0.71kg.cm at 6V, while maintaining a swift no-load speed of 0.1sec/60°. Driven by a digital comparator amplifier using pulse width modulation (500–2500 µsec), it ensures an exceptionally wide 280° running degree with versatile CW/CCW rotating directions and a dead band width of ≤4 µsec. Crucially, it provides real-time position monitoring via feedback voltage (0.04V at 900 µsec, 1.65V at 1500 µsec, and 3.2V at 2100 µsec). Weighing only 12.5g with a 250mm connector wire, it delivers an optimal blend of smart voltage feedback and metal gear durability for smart robotics, closed-loop telemetry, and micro RC applications.

Common use cases: Closed-loop micro robot joints requiring real-time position feedback, fixed-wing drone and RC aircraft control surfaces with position telemetry, small FPV gimbal tilt axis, educational robotics kits needing analog feedback, and any sub-13g application requiring 280° wide-angle control with voltage output monitoring.