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Title:
COMMON MODE NOISE FILTER
Document Type and Number:
WIPO Patent Application WO/2012/039296
Kind Code:
A1
Abstract:
[Problem] To provide a common mode noise filter capable of suppressing delamination and deterioration of the filter characteristic due to thermal shock incurred during reflow soldering or the like. [Solution] A common mode filter equipped with: a first magnetic body part (12) and a second magnetic body part (14); a nonmagnetic body part (13) sandwiched between the first magnetic body part (12) and the second magnetic body part (14); and a planar first coil conductor part (16) and second coil conductor part (17) embedded in the nonmagnetic body part (13) so as to be positioned on the first magnetic body part side and the second magnetic body part side of the nonmagnetic body part (13), facing one another in a noncontact state. A first lead-out conductor (15) that connects one end of the first coil conductor part (16) and a first external terminal (21) is embedded in the nonmagnetic body part (13), and a second lead-out conductor (18) that connects one end of the second coil conductor part (17) and a third external terminal (23) is embedded in the nonmagnetic body part (13).

Inventors:
NOGI KENICHIROU (JP)
TAKETOMI KOJI (JP)
MOTOMIYA YOSHIYUKI (JP)
TAKAHASHI TAKUMI (JP)
IWAO HIDEMI (JP)
SHIMIZU MASAYUKI (JP)
Application Number:
JP2011/070554
Publication Date:
March 29, 2012
Filing Date:
September 09, 2011
Export Citation:
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Assignee:
TAIYO YUDEN KK (?1100005, JP)
NOGI KENICHIROU (JP)
TAKETOMI KOJI (JP)
MOTOMIYA YOSHIYUKI (JP)
TAKAHASHI TAKUMI (JP)
IWAO HIDEMI (JP)
SHIMIZU MASAYUKI (JP)
International Classes:
H01F17/00
Foreign References:
JP2006261585A2006-09-28
JPH0645307U1994-06-14
JP2004260017A2004-09-16
JP2006351962A2006-12-28
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Claims: