Magnetic ferrite magnetic core material, multilayer chip ferrite component, composite and laminated parts

摘要

PROBLEM TO BE SOLVED: To provide magnetic ferrite materials and a magnetic core whose magnetic permeability is high and a laminated chip ferrite part whose inductance or absorbing characteristics are high, and a composite laminated part.;SOLUTION: Fe2O3, NiO, CuO, and ZnO obtained by forming temporary sintered powder obtained by temporarily sintering original materials into a desired shape, and sintering it is used as main components in this magnetic ferrite materials. In this case, the composition of Fe2O3, NiO, CuO, and ZnO is defined as Fe2O3 is ranging from 49 to 50 mol%, NiO is ranging from 7 to 12 mol%, CuO is ranging from 7.5 to 12.5 mol%, and ZnO is ranging from 28.5 to 33 mol%. The rate of the content of S components to the content of CI components (S/CI) is ranging from 0.15 to 5.0. A laminated chip ferrite part is constituted by laminating a magnetic ferrite layer and an inner electrode in plural layers. Also, a composite laminated part is provided with the chip ferrite part in which the ferrite magnetic layer and the inner electrode are laminated, and a magnetic core is constituted of the magnetic ferrite materials.;COPYRIGHT: (C)2000,JPO