ferrite bead inductor
Consisting of a ferrite cylinder with wire wound about it, its main function The ferrite bead inductor is an important component in electronic circuits. This is to stop the flow of high frequency currents but let direct current (DC) and low frequency signals through unaffected. Its technological features include a high saturation current, low DC resistance and wide frequency range, suitable for use in various types of electronic equipment to suppress interference noise. Common applications are power supplies, data transmission lines, radio frequency (RF) circuits--that is where maintaining signal integrity is most important.