Electronic component
In a coil component, a main body portion is made of a metal magnetic powder-containing resin, and thus a resin component appears on end surfaces of the main body portion. In addition, since external terminal electrodes are made of a conductive resin, a resin component also appears on the surfaces of the external terminal electrodes. Accordingly, insulating coating layers are integrally covered with high adhesion with the end surfaces of the main body portion and the external terminal electrodes by the insulating coating layers coming into contact with the end surfaces of the main body portion so as to straddle the external terminal electrodes.
1. An electronic component comprising:
an element body, wiring being provided in the element body;
a terminal electrode provided on a surface of the element body and electrically connected to the wiring; and
an insulating coating layer covering the terminal electrode, wherein
the element body is made of a metal magnetic powder-containing resin and has a mounting surface facing a mounting substrate and a rectangular end surface extending in a height direction intersecting with the mounting surface,
the terminal electrode is made of a conductive resin and continuously covers the mounting surface and the end surface of the element body,
the terminal electrode is separated from all three sides other than a side corresponding to the mounting surface and a U-shaped exposed region where the end surface is exposed from the terminal electrode is formed on the end surface,
the insulating coating layer is made of a resin material and integrally covers the terminal electrode and the exposed region on the end surface, and
a thickness of the insulating coating layer on the end surface of the element body is not uniform such that a thickness of the insulating coating layer at an intermediate position along the height direction is smaller than: (i) a thickness of the insulating coating layer at a first position in between the intermediate position and the mounting surface along the height direction and (ii) a thickness of the insulating coating layer at a second position on an opposite side of the intermediate position with respect to the first position along the height direction.
2. The electronic component according to claim 1 , wherein a surface roughness of the end surface of the element body is larger than a surface roughness of the terminal electrode.
3. The electronic component according to claim 1 , wherein the terminal electrode is arranged outward with respect to an entirety of the end surface and an entirety of the mounting surface of the element body.