Coil component

A coil component comprising:

• a body having a first surface and a second surface opposing each other, and a first end surface and a second end surface connecting the first surface and the second surface to each other and opposing each other in a first direction;
• a coil unit disposed in the body;
• first and second external electrodes disposed on the body while being spaced apart from each other, and each connected to the coil unit;
• and
• an external insulating layer covering the rest of the body except for a region where the first or second external electrode is disposed,
• wherein the coil component includes a slit portion formed in at least one of the first surface of the body and the second surface of the body, spaced apart from each of the first and second external electrodes, and extending in a direction intersecting the first direction, a dimension Ws of the slit portion in the first direction is less than or equal to 20.8% of a dimension Lc of the coil component in the first direction, a depth Ds of the slit portion is 75% or less of an average shortest distance Tu between the coil unit and the second surface of the body, and the slit portion includes a first slit portion formed in the first surface of the body and a second slit portion formed in the second surface of the body.