Ferrite ceramic composition and coil component
AssigneeMurata Manufacturing Co., Ltd.
InventorsKazutoshi Sugii, Takashi Sakai
Life of this patent
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Abstract
A ferrite ceramic composition includes, as main components, from 27.0 mol % to 41.0 mol % of Fe in terms of Fe2O3, from 16.0 mol % to 24.0 mol % of Ni in terms of NiO, from 23.0 mol % to 37.0 mol % of Zn in terms of ZnO, from 5.0 mol % to 9.0 mol % of Cu in terms of CuO, and from 4.0 mol % to 14.0 mol % of Si in terms of SiO2, and as sub-components, relative to 100 parts by mass of the main components, from 0.3 parts by mass to 1.2 parts by mass of Bi in terms of Bi2O3, from 0.3 parts by mass to 1.2 parts by mass of Co in terms of Co3O4, from 0.01 parts by mass to 0.25 parts by mass of Mn in terms of Mn2O3, and from 0.003 parts by mass to 0.030 parts by mass of Cr in terms of Cr2O3.
Claims20
A ferrite ceramic composition comprising:
- as main components,
- from 27.0 mol % to 41.0 mol % of Fe in terms of Fe2O3;
- from 16.0 mol % to 24.0 mol % of Ni in terms of NiO;
- from 23.0 mol % to 37.0 mol % of Zn in terms of ZnO;
- from 5.0 mol % to 9.0 mol % of Cu in terms of CuO;
- and
- from 4.0 mol % to 14.0 mol % of Si in terms of SiO2;
- and
- as sub-components, relative to 100 parts by mass of the main components, from 0.3 parts by mass to 1.2 parts by mass of Bi in terms of Bi2O3;
- from 0.3 parts by mass to 1.2 parts by mass of Co in terms of Co3O4;
- from 0.01 parts by mass to 0.25 parts by mass of Mn in terms of Mn2O3;
- and
- from 0.003 parts by mass to 0.030 parts by mass of Cr in terms of Cr2O3.
Dependencies are inferred from the claim text.