| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a noise filter of which a product cost is low, which is easy to manufacture and further, in which component mounting error is not almost generated. <P>SOLUTION: A noise filter 1 comprises a common mode choke coil unit 2, a first capacitor unit 5, and second and third capacitor units 6, 7. The common mode choke coil unit 2 has a closed magnetic path structure wherein first and second winding wires 4-1 and 4-2 are wound around a core 3 and a top plate 35 is attached to the core 3. The first capacitor unit 5 comprises first electrodes 51, 52 formed in a flange 31, and is connected to both terminal parts of one of the first and second winding wires 4-1 and 4-2. Furthermore, the second and third capacitor units 6, 7 comprise second and third electrodes 61 and 71 and a ground electrode 67 formed in a flange 32 and are connected in series to both terminal parts of the other first and second winding wires 4-1 or 4-2 so as to be grounded via the ground electrode 67. <P>COPYRIGHT: (C)2007,JPO&INPIT |
