| 摘要 |
PROBLEM TO BE SOLVED: To provide a noise filter device having a noise filter whose frequency characteristics are made uniform.SOLUTION: A noise filter device includes: a filter element 20 that has an element body 20a, an input-side lead line 20b, an output-side lead line 20c, and a ground terminal 20d and is configured to form a noise filter using a mutual inductance between the input-side lead line and the output-side lead line; and a protector body 10 including an element engagement part 11 to secure the element body, and projections 12A, 12B, 12C, and 12D to maintain a state in which the input-side lead line and the output-side lead line are routed so as to form opposing portions adjacent to and opposed to each other. |
