The Lantu Microelectronics SNR4020-330MT with 33uH ±20% SMD,4x4mm Power Inductors ROHS is an electronic component designed to provide storage of electrical energy in varying degrees in either a static charge or in an alternating current. It is typically used as an inductor, transformer, electromagnet, or electrical filter to filter out or smooth out irregularities in power currents. It may also be used in buffer circuits and in inductive heating applications. This device is equipped with a high saturation current, low DC resistance, and a stable performance in ultra-wide frequency range. It is ROHS certified, making it environmentally safe and meets all regulatory requirements, making it ideal for most industrial and consumer electronic applications. It also has a high heat resistance, making it suitable for use in a variety of high power electronic applications. Additionally, the SMD design allows for easy assembly.