| 摘要 |
PROBLEM TO BE SOLVED: To obtain a low-cost Mn-Zn ferrite material having high resistance and high magnetic permeability and ensuring a small core loss. SOLUTION: This ferrite material contains 43.0-49.5 mol.% Fe2 O3 , 33.5-49.0 mol.% MnO and 8.0-17.0 mol.% ZnO as principal components, has a ZnO to Fe2 O3 molar ratio of <=0.35 and further contains 0.3-3.5 wt.% CuO as a subsidiary component. |
