| 摘要 |
PROBLEM TO BE SOLVED: To facilitate designing a box which is provided for shielding an electronic apparatus by connecting the box to a printed board and controlling the frequency components of a current flowing on the box. SOLUTION: This screw-type electronic part is composed of a conductive head 10, connector 40, terminal 30 and nonconductive screw 20, the connector 40 constitutes a low-pass filter having an inductance, printed wiring board 50 has a through-hole 52 for inserting the screw 20 of the screw-type electronic part and ground 54 at the periphery of the through-hole 52 on the top surface, and a box 60 has a screw hole 64, into which the screw 20 of the screw type electronic component is tightened. A current generated in the printed wiring board 50 is converted into a common code current with the ground 54 and transmitted to the box 60 via the route of the head 10, the connector 40 and the terminal 30 of the screw-type electronic part, thus high-frequency components are removed.
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