| 摘要 |
PROBLEM TO BE SOLVED: To provide a Ni-Zn based small loss oxide magnetic material in which saturation magnetic flux density is high, loss is small and resistivity is high, as compared with Mn-Zn ferrite. SOLUTION: This small loss oxide magnetic material is Ni-Zn ferrite, composed of Fe2O3, NiO, ZnO and Sb2O5, and Sb2O5 is set as at most 30 mol.% (zero is not contained). In other case, the small loss oxide magnetic material is Ni-Zn-Cu ferrite, composed of Fe2O3, NiO, ZnO, CuO and Sb2O5, and Sb2O5 is set as at most 30 mol% (zero is not contained). In other case, the small loss oxide magnetic material is Ni-Zn ferrite composed of 40-49.5 mol% of Fe2O3, 15-30 mol.% of NiO, at most 0.30 mol.% of Sb2O5 (zero is not contained) and residual ZnO. The winding component has a magnetic core composed of the small loss oxide magnetic material. |
