The RK10J11E002Y is a single unit 10mm diameter, 3B insertion (2mm) potentiometer manufactured by ALPS. It is a conductive plastic element that can be used to vary the resistance in electrical circuits. The RK10J11E002Y has a rotation angle of 270° and provides for linear resistance changes with movement of the arm. It is designed for smooth, precise adjustment of electronic equipment, making it ideal for use in audio and video equipment, gaming controllers, and other electronic devices. Additionally, it has shaft locking capability for secure mounting in applications where vibration or shock may be present.