The CB2518T221M Power Inductors with 220uH ±20% 50mA 1007 RoHS manufactured by Taiyo Yuden are an electronic component that is used to regulate electrical current in a circuit. It is a mains-rated inductor that is constructed of two coils of wire wound around a ferromagnetic core. It helps to reduce the amount of current flowing through a circuit by acting as a filter or choke. This component is RoHS compliant, meaning that it meets the European Union's requirements for using hazardous materials in electronic products. The power inductor has a rated inductance of 220uH ±20%, current rating of 50mA, and has a package size of 1.0mm x 0.7mm x 0.6mm. It is designed for use in applications such as portable electronic equipment, handhelds, and cell phones.