The 559-5401-007F is a 559 series snap-in LED panel mount indicator. It features an amber LED with a peak wavelength of 610 nm and a typical luminous intensity of 40 mcd at a 10 mA forward current. This indicator has a typical forward voltage of 2.2V, a 50-degree viewing angle, and a maximum DC forward current of 20 mA. Designed for mounting in a 0.250-inch (6.35 mm) hole, it comes with a black UL94V-0 rated housing and straight terminals. It is suitable for a wide range of applications, including data-center infrastructure, test and measurement instruments, and communications equipment.