| 摘要 |
PROBLEM TO BE SOLVED: To provide Ni-based ferrite that has a small core loss (Pcv), as a transformer for a compact and lightweight power unit. SOLUTION: The Ni-based ferrite has a main composition of: Fe2 O3 of 49.0-50.0 mol%, NiO of 10.0-15.0 mol%, CuO of 5.0-8.0 mol%, and ZnO as the balance. The ferrite contains, as a sub component, Ti of <=0.1 wt.% in terms of TiO2 (excluding 0) or TiO2 of <=0.1 wt.% (excluding 0). Besides, the ferrite contains Cr2 O3 of 0.02-0.5 wt.%. |
