| 摘要 |
PROBLEM TO BE SOLVED: To provide a low-loss Ni-Zn ferrite as a magnetic core material for a small-sized highly reliable power transformer or choke coil which is reduced in power loss. SOLUTION: The main component of a low-loss oxide magnetic material contains Fe2O3 in an amount of 46.5-49.8 mol%, ZnO in an amount of 20.0-35.0 mol%, Ga2O3 in an amount of 0-3.0 mol% (excluding 0 mol%), CuO in an amount of 2.5-10.0 mol%, and the balance NiO. |
