| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coil component that is enhanced in magnetic coupling while made compact. <P>SOLUTION: A common-mode filter 1 has a first coil 61 and a second coil 62 constituted by stacking substrates 10 to 17, and the first coil 61 and second coil 62 are bifilar-wound around cores 71, 72 inserted into a space S formed by first connection parts 14a, 14b and a second connection part 14c arranged between a substrate 13 and a substrate 15. Consequently, first to fourth conductors 31 to 34 are only increased along a length in a substrate so as to increase the number of coils, and the number of stacked substrates need not be increased unlike before. Consequently, an increase in size of a base body can be suppressed. Further, by the first coil 61 and second coil 62 being bifilar-wound around cores 71, 72, the magnetic coupling can be enhanced. <P>COPYRIGHT: (C)2012,JPO&INPIT |
