| 摘要 |
<p>Disclosed is a common mode filter. The common mode filter includes a substrate, a filter layer which is arranged on the substrate and removes a signal noise, external electrodes which are connected to the upper side of the filter layer and inputs/outputs a signal, a ground electrode which grounds an abnormal voltage inputted to the external electrode on the filter layer, and a switch part which performs switching operation by receiving the abnormal voltage and connects the external electrode and the ground electrode.</p> |
