Inductor component and mounting structure of inductor component

An inductor component comprising:

• an element body including a substrate having a first principal surface and a second principal surface facing each other and an end surface extending in a direction orthogonal to the first principal surface;
• and
• a coil on the element body and wound into a spiral shape along an axis,
• wherein
• the coil includes at least one first coil wiring on the first principal surface, at least one second coil wiring on the second principal surface, at least one first through wiring which penetrates the substrate from the first principal surface to the second principal surface, and at least one second through wiring which penetrates the substrate from the first principal surface to the second principal surface, and is on a side opposite to the first through wiring with respect to the axis,
• the first coil wiring, the first through wiring, the second coil wiring, and the second through wiring are connected in this order to constitute at least a part of the spiral shape,
• the at least one second coil wiring includes a both-end connecting coil wiring having a first end portion connected to the first through wiring and a second end portion connected to the second through wiring,
• a portion of an outer surface of the both-end connecting coil wiring is exposed to at least an outside, the portion being located on a side opposite to the second principal surface,
• an exposed surface of the outer surface of the both-end connecting coil wiring exposed to the outside contains a corrosion-resistant conductive material,
• an insulating layer is disposed on the first principal surface,
• an external electrode is disposed on the insulating layer such that the insulating layer is disposed between the external electrode and the first coil wiring in the direction orthogonal to the first principal surface, and
• the external electrode is electrically connected to the coil via an end surface portion of the external electrode that is exposed to the outside on the end surface of the element body.