| 摘要 |
PURPOSE:To obtain a ferrite core of high permeability and high saturation magnetic flux density which is advantageously applied to the small-sized transformer of a switching power supply or the like, in Ni-Zn based ferrite. CONSTITUTION:In Ni-Zn based ferrite, the title ferrite core is characterized by the following; the vacancy ratio is 1-5%, and the relation of the permeability (mui), the saturation magnetic flux density (Bm[mT]), and the flux density when the measuring magnetic field is 1600A/m is given by Bm>=-197.73Xlog(mui)+990. |
