The RS30H11AAA02 Slide Potentiometers Single Unit is a 30mm horizontal type manufactured by ALPS. The part is a linear potentiometers which can handle up to 1A of reliably steady operation. It has a linear profile and features a having a sliding contact made of carbon plate structure, which produces a uniform, smooth motion over its entire range. The contact angle of its sliding contact is 45 degree, and the whole device is dust and water resistant, with a precision of ±20%. It also comes with a 6.35mm diameter outer shaft, and can be used in a wide range of applications, such as detent control, audio systems, power and signal systems, and electronic variable systems.