| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a common mode noise filter capable of preventing deterioration of differential signal.SOLUTION: The common mode noise filter includes: a first coil 12 which is constituted of a first coil conductor 14 and a second coil conductor 15 connected to each other; and a second coil 13 which is constituted of a third coil conductor 16 and a fourth coil conductor 17 connected to each other. The first coil conductor 14 and the second coil conductor 15 constituting the first coil 12 and the third coil conductor 16 and the fourth coil conductor 17 constituting the second coil 13 are alternately disposed in a lamination direction so that the second and third coil conductors 15 and 16 are positioned at the inner side and the first and fourth coil conductors 14 and 17 are positioned at the outer side. The wound number of the second coil conductor 15 is smaller than the wound number of the fourth coil conductor 17; and the wound number of the third coil conductor 16 is smaller than the wound number of the first coil conductor 14.</p> |
