Coil component

1. A coil component comprising:

a body including a first insulating resin;

a coil unit disposed in the body; and

first and second external electrodes disposed to be spaced apart from each other on the body and connected to the coil unit,

wherein a first surface of the body has a recess portion, the recess portion includes a tapered side surface extending from the first surface and a bottom surface extending from the tapered side surface,

wherein an identification portion is disposed in the recess portion and includes a second insulating resin, and

wherein the bottom surface of the recess portion includes a plurality of depressed portions and a plurality of protruding portions which are spaced apart from the first surface by the tapered side surface interposed therebetween.

2. The coil component of claim 1 , wherein the first insulating resin of the body and the second insulating resin of the identification portion include a same material.

3. The coil component of claim 1 , wherein the identification portion has a first surface and a second surface facing the first surface of the identification portion, and

the first surface of the identification portion is in contact with the bottom surface of the recess portion and the second surface of the identification portion is located at a level lower than a level of the first surface of the body.

4. The coil component of claim 3 , further comprising:

a surface insulating layer disposed on the first surface of the body and covering the identification portion,

wherein the surface insulating layer is disposed in at least a part of the recess portion and is in contact with the second surface of the identification portion.

5. The coil component of claim 1 , wherein a sectional area of the recess portion adjacent to the first surface of the body is larger than a sectional area of the recess portion adjacent to the bottom surface of the recess portion.

6. The coil component of claim 5 , wherein the sectional area of the recess portion decreases in a direction from the first surface of the body toward the bottom surface of the recess portion.

7. The coil component of claim 1 , wherein each of the plurality of depressed and protruding portions has a slit shape extending in a first direction.

8. The coil component of claim 7 , wherein the plurality of depressed portions are spaced apart from each other in a second direction perpendicular to the first direction.

9. The coil component of claim 1 , wherein the body further includes a magnetic metal powder, and at least a part of the magnetic metal powder is exposed to the plurality of depressed and protruding portions.

10. The coil component of claim 1 , wherein the body has a second surface opposing the first surface of the body, and the first and second external electrodes are spaced apart from each other on the second surface of the body.

11. The coil component of claim 10 , further comprising:

a support substrate disposed in the body,

wherein the coil unit includes first and second coil patterns disposed on opposing surfaces of the support substrate facing each other and a via connecting inner ends of the first and second coil patterns through the support substrate.

12. The coil component of claim 11 , wherein the coil unit further includes first and second lead patterns extending from the first and second coil patterns and connected to the first and second external electrodes, respectively.

13. The coil component of claim 1 , wherein the second insulating resin of the identification portion includes an epoxy.

14. The coil component of claim 1 , wherein the identification portion further includes at least one of an organic filler or an inorganic filler dispersed in the second insulating resin.