RC2KB material is a soft magnetic ferrite material with permeability (2000±20%), high saturation flux density (355mT) and high Curie temperature (>140℃) developed by our company. It also has high working frequency and is far superior to the high saturation flux density and high Curie temperature of competing products, which solves the problem of low Tc of high permeability nickel-zinc materials in the industry. This kind of material can be widely used in all kinds of miniature inductors, high frequency inductors, transformers, high frequency interference suppressors and so on.