Development Trends of Small Case Size Metal Type Power Inductor

Introducing technological trends in small case size metal type power inductors, according to the higher switching frequency, required inductance value has become lower and replacement of materials from ferrite progressed. The inductors have various types magnetic (resin composite type, oxide layer bounded type) structures (wire winding, thin film multi-layer type), each been developed actively. directions development are current loss. Therefore, developments materials, such as high packing powders, specific performances powder particle reduction, progress.