| 摘要 |
PROBLEM TO BE SOLVED: To provide: a ferrite composition having high initial magnetic permeability, yet excellent in balance between the saturation magnetic flux density and low power loss (MHz region); a ferrite core composed of the ferrite composition; and an electronic part having the ferrite core.SOLUTION: This ferrite composition has a main component composed of, by mol, 47.0-49.95% FeO, 1.0-12.0% CuO, 32.6-35.0% ZnO and 0.01-2.4% MnO, and the rest of nickel oxide, and an accessory component composed of 2-65 ppm P, 40-4,500 ppm ZrOand 10 ppm or less Pb, 10 ppm or less Cd each to 100 pts.wt. of the main component, where the total content of FeOand MnOis 50.1 mol% or less. |
