Multilayer chip ferrite bead is mainly used to eliminate the RF noise existing in the transmission line structure (PCB circuit). The multilayer ferrite bead is composed of soft ferrite materials, forming a monolith structure with high volume resistivity. 

The two most significant benefits of multilayer ferrite bead are miniaturization and lightweight. It has high impedance in frequency range of RF noise to eliminate electromagnetic interference in the transmission line. The closed magnetic circuit and the excellent magnetic shielding structure makes it able to better eliminate the crosstalk of signals. Besides, the low DC resistance can also avoid excessive attenuation of useful signals.

Multilayer chip ferrite inductor is classified according to structure. It has the advantages of small overall size, non directionality, standardized automatic chip mounting appearance, closed circuit without interactive interference, high-density installation feasibility and so on. It has excellent weldability and welding resistance, and is suitable for flow welding and reflow welding.

This type of product is widely used for noise elimination of input and output lines on notebook computers, digital TVs, digital video recorders, hard disk drives, personal computers and other general consumer electronic products.