发明授权
- 专利标题: Common mode choke coil and method for manufacturing the same
- 专利标题(中): 共模扼流线圈及其制造方法
-
申请号: US13601889申请日: 2012-08-31
-
公开(公告)号: US09245680B2公开(公告)日: 2016-01-26
- 发明人: Miho Kitamura , Hayami Kudo , Atsushi Yamamoto , Akihiro Nakamura
- 申请人: Miho Kitamura , Hayami Kudo , Atsushi Yamamoto , Akihiro Nakamura
- 申请人地址: JP Kyoto-fu
- 专利权人: Murata Manufacturing Co., Ltd.
- 当前专利权人: Murata Manufacturing Co., Ltd.
- 当前专利权人地址: JP Kyoto-fu
- 代理机构: Studebaker & Brackett PC
- 优先权: JP2011-191664 20110902
- 主分类号: H01F5/00
- IPC分类号: H01F5/00 ; H01F27/30 ; H01F1/00 ; H01F17/00 ; H01F41/04
摘要:
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 Fe2O3, Mn2O3, NiO, ZnO and CuO. The sintered ferrite material has an Fe2O3-reduced content of 25 to 47 mol % and a Mn2O3-reduced content of 1 to 7.5 mol %, or Fe2O3-reduced content of 35 to 45 mol % and a Mn2O3-reduced content of 7.5 to 10 mol %, and a CuO reduced content of 5 mol %.