Ferrites, including hard ferrite and soft ferrite, are very important types of magnetic materials. The application of ferrite cores is still quite extensive, mainly used in the electronic information industry, and the products are used in electronic transformers. Magnetic components in devices such as inductors and chokes.
Ferrite core is mainly composed of iron (Fe), manganese (Mn), and zinc (Zn) three kinds of metal elements, commonly known as manganese zinc ferrite. The toroidal ferrite core has a high magnetic effect because there is no air gap and the cross-sectional area is the same.