| 摘要 |
Provided is a ceramic electronic part, such as alternatedly-wound common-mode choke coil and etc., which is capable of obtaining good electrical characteristics by guaranteeing the insulation characteristic even if the ceramic is co-fired with a conductive material which has Cu as a main composition. A first coil conductor which is formed with a first coil pattern (4a, 4b) and a second coil conductor which is formed with a second coil pattern (5a, 5b) are alternately laminated within a ferrite sheet (3a to 3i). The first and second coil conductors are formed with Cu, and a magnetic body unit is formed with a Ni-Mn-Zn group ferrite of which the mole fraction (x, y) is within A(25, 1), B(47, 1), C(47, 7.5), D(45, 7.5), E(45, 10), F(35, 10), G(35, 7.5) and H(25, 7.5) wherein the CuO mole fraction is at most 5 mol%, the mole fraction of Fe_2O_3 is x, and the mole fraction of Mn_2O_3 is y. |
