The 53RAA-R25-A10L is a sealed 1/2" (12.5 mm) square control potentiometer manufactured by Bourns, designed for professional audio and general control applications. This model features a 25 kO resistance value with a conductive plastic element and linear taper, offering ±10% tolerance. The potentiometer is sealed for board washing, includes a metal bushing and shaft, and supports both PC board and bushing mounting configurations with optional anti-rotation lugs and brackets. It provides an effective electrical angle of 270° ±5° and an independent linearity of ±5%, with an absolute minimum resistance of 2 ohms maximum. The device is RoHS compliant and suitable for audio equipment, mixing consoles, and other professional control applications requiring sealed, reliable potentiometer performance.