29-08-2013 дата публикации
Номер: US20130222104A1
There is provided a common mode choke coil in which a non-magnetic layer and a second magnetic layer stacked on a first magnetic layer and two facing conductive coils are included in the non-magnetic layer, the non-magnetic layer is formed of sintered glass ceramics, the conductive coils and are formed of a conductor containing copper, and at least one of the first magnetic layer and the second magnetic layer is formed of a sintered ferrite material containing FeO, MnO, NiO, ZnO and CuO. The sintered ferrite material has an FeO-reduced content of 25 to 47 mol % and a MnO-reduced content of 1 to 7.5 mol %, or FeO-reduced content of 35 to 45 mol % and a MnO-reduced content of 7.5 to 10 mol %, and a CuO reduced content of 5 mol %. 1. A common mode choke coil comprising a non-magnetic layer and a second magnetic layer stacked on a first magnetic layer , and two conductive coils facing one another included in the non-magnetic layer ,{'sub': 2', '3', '2', '3', '2', '3', '2', '3', '2', '3', '2', '3, 'wherein the non-magnetic layer is formed of sintered glass ceramics, the conductive coil is formed of a conductor containing copper, at least one of the first magnetic layer and the second magnetic layer is formed of a sintered ferrite material containing FeO, MnO, NiO, ZnO and CuO, and the sintered ferrite material has an FeO-reduced content of not less than 25 mol % but not more than 47 mol % and a MnO-reduced content of 1 mol % or more and less than 7.5 mol %, or FeO-reduced content of not less than 35 mol % but not more than 45 mol % and a MnO-reduced content of not less than 7.5 mol % but not more than 10 mol %, and a CuO reduced content of 5 mol %.'}2. The common mode choke coil according to claim 1 , wherein the first magnetic layer and the second magnetic layer are connected through inner coil parts of the two conductive coils disposed in the non-magnetic layer.3. A method of manufacturing a common mode choke coil in which a non-magnetic layer and a second magnetic ...
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