MG90S Metal Gear Micro Servo 180 Degree

The MG90S is the metal-gear upgrade to the plastic-gear SG90, a genuinely common swap once a build's load or duty cycle exceeds what plastic gears reliably handle over time - same compact footprint and mounting pattern, but gears that hold up to real repeated use without stripping. At 13.4g it adds negligible weight to a build, while the all-metal gear train and coreless motor deliver meaningfully more torque (1.8-2.2kg/cm) and smoother, higher-resolution movement than the plastic-gear equivalent.

A 10-microsecond positioning resolution gives genuinely fine control over exact servo angle, useful for anything needing precise rather than just approximate positioning, and standard 3-pin connectors keep it compatible with the same servo headers and PWM signal convention used across Arduino, flight controllers, and RC receivers broadly.

Common uses are small FPV camera tilt mounts, control surface actuation on lightweight RC aircraft, and general small-robotics mechanisms needing more durability than a plastic-gear micro servo while staying in the same compact size class.