The Sanyo Denki 103H7821-0430 is a unipolar stepper motor with lead wire type terminals and interchangeable NEMA23 dimensions (47.14 mm-pitch). It is designed to provide precise, efficient motion control for applications such as automated components for machines, medical tools, and robotics. The stepper motor has an operating voltage of 0.5~10.5 V, with a maximum current of 0.75 A. It has a resolution of about 1/3.5° and a speed of up to 300 rpm. It features a design with two phases, four-phase drive, and a choice of nine different windings. The 103H7821-0430 also incorporates a water-resistant finish.