The XRNR4018-22uH/M with 22uH±20% SMD-2P,4x4mm Power Inductors ROHS manufactured by MaxLinear is a surface mount Inductor. It is a two-pin 4x4mm component designed to store electrical energy in a magnetic field. It is used to filter unwanted frequencies in circuits, as well as to provide electrical storage for current and voltage. It has a wide frequency range of up to 1GHz and can operate in temperatures ranging from -40°C to +150°C. This inductor is RoHS compliant and has a low profile (1.2mm) for high-density applications.