The PNLS4030-220 is a power inductor with a 22uH ±20% inductance, 225mO resistance, 1.3A current rating, 4x4x3mm footprint, and ROHS rating manufactured by DMBJ. It is a surface mount device (SMD), meaning that it has electrical connections on both sides, allowing for high-density circuitry. It is made with a number of materials, including ferrite and copper winding, and designed to store and regulate energy in alternating current (AC) and direct current (DC) circuits. It is used for a variety of purposes, such as power filtering and transient suppression, and is suitable for use in a range of electronics and electrical applications.