Common mode filter

A common mode filter comprising:

• a body including a filter portion and an electrostatic protection portion;
• first to fourth external electrodes disposed on an external surface of the body;
• a ground electrode disposed on the external surface of the body;
• a first coil embedded in the filter portion and electrically connected to the first and second external electrodes;
• a second coil embedded in the filter portion and electrically connected to the third and fourth external electrodes;
• a coil insulating layer surrounding the first and second coils;
• and
• a coil magnetic layer disposed on the coil insulating layer,
• wherein
• the electrostatic protection portion is disposed on the coil magnetic layer, and
• the electrostatic protection portion includes:
• discharge electrodes electrically connected to at least one of the first to fourth external electrodes and the ground electrode;
• a discharge part disposed between the discharge electrodes and including conductive particles;
• an organic-inorganic composite insulating layer disposed under the discharge electrodes and the discharge part;
• and
• an inorganic insulating layer disposed between the organic-inorganic composite insulating layer and the coil magnetic layer.