Patent ID: 6392530
Filing Date: 2002-05-21
Classification: H01C,H05K

Abstract:
A resistor array board comprising a porous plate having a plurality of through-holes arranged in array and opening at opposite surfaces thereof; and a plurality of protective resistors removably loosely inserted in said through-holes, each of said protective resistors being resiliently retained by an electrically conductive spring element such that, when circuit forming elements are arranged in opposing relation on each surface of said porous plate, opposite ends of each of said protective resistors are press contacted with the circuit forming elements;wherein said porous plate has a grounding contact through-hole separate from said plurality of through holes in which said plurality of protective resistors are loosely inserted, and a grounding contact is loosely inserted in said grounding contact through-hole, and said grounding contact is resiliently arranged in said grounding contact through-hole such that, when the circuit forming elements are arranged in opposing relation on each surface of said porous plate, opposite ends of said grounding contact are resiliently press contacted with the circuit forming elements to form a grounding line between the circuit forming elements.