| 摘要 |
PROBLEM TO BE SOLVED: To facilitate designing of a box provided for shielding an electronic apparatus by connecting the box to a printed board and controlling the frequency component of a current flowing in the box. SOLUTION: This-screw-type electronic component is composed of a conductive head 10, connectors 40A, 40b, a terminal 30 and a nonconductive screw 20, the connectors 40A, 40B constitute a band-pass filter having an inductance and a capacitance, a printed wiring board 50 has a through-hole 52 for inserting the screw 20 of the screw-type electronic part and a 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 a route of the screw-type electronic part, thus eliminating other currents than those having a specified frequency.
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