Patent ID: 8679362

Claim:
A nickel-zinc-copper (NiZnCu) based ferrite composition containing 0.001 to 0.3 parts by weight of at least one bivalent metal selected from a group consisting of Co, Mg, and Mn, 0.001 to 0.3 parts by weight of at least one trivalent metal selected from a group consisting of Bi, Al, Ga and In, and 0.001 to 0.5 parts by weight of at least one tetravalent metal selected from a group consisting of Ce, S, Ti, Si, and Zr based on 100 parts by weight of main component containing 47.0 to 50.0 mol % of Fe 2 O 3 , 15.0 to 27.0 mol % of NiO, 18.0 to 25.0 mol % of ZnO, and 7.0 to 13.0 mol % of CuO.