| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce noise generated by a zener diode element, in a capacitor microphone output connector having a printed wiring board on which a capacitor element for preventing high-frequency intrusion and the zener diode element for preventing circuit breakage due to static electricity are mounted. <P>SOLUTION: There is provided a capacitor microphone output connector constituted by disposing a printed circuit board 14 on a connector base 11 provided with a first pin for grounding and second and third pins for a signal so as to penetrate the connector base, the printed circuit board 14 being formed by mounting in parallel a capacitor element 148 for preventing high-frequency intrusion and a zener diode element 149 for preventing circuit breakage due to static electricity on the upper surface side of the printed circuit board 14, and forming an electrostatic shield layer made from copper foil on the lower surface side of the printed wiring board 14, in which a magnetic sheet 16 is disposed between the connector base 11 and the electrostatic shield layer of the printed circuit board 14, thereby forming an LC low-pass filter composed of an inductance component L of the magnetic sheet 16 and an electrostatic capacity component C of the capacitor element. <P>COPYRIGHT: (C)2012,JPO&INPIT |
