| 摘要 |
PROBLEM TO BE SOLVED: To obtain a filter whose filter circuit can easily be assembled with a printed circuit board. SOLUTION: A plurality of filter circuit elements 1a, 10 that are interconnected to configure a filter circuit are mounted on mount boards 40a-40d, external connection terminals 41a-41c of the filter circuit are formed on a lower side of the mount board 40a to integrate the entire components. Since the filter has a physical unity and the lower face of the filter is formed with the external connection terminals 41a-41c, a printed circuit board can regard the filter as a single circuit component, and then the filter circuit can easily be assembled with the printed circuit board.
|
