High frequency noise suppression structure for power cable of circuit board, has ground electrode formed to cover principle portions of conductive coil arranged between ferrite magnetic resin and electrodes

摘要

The conductive coil (2) is arranged in magnetic resin containing ceramic ferrite powder (1). Two external electrodes (3a,3b) extends from resin surface, so that it conducts with both ends of conductive coil. Ground electrode (4) is formed to cover principle portions of coil between the electrodes.