US 2026/0302033 A1Published application

Coil component

AssigneeTDK Corporation

InventorsYuma USAMI, Hokuto EDA, Kohei TAKAHASHI, Takahiro NEMOTO, Ryota ISHIKAWA

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Abstract

In a coil component, an outer end portion of a second coil portion of a first coil provided on a lower surface of a substrate and an outer end portion of a first coil portion of a second coil provided on an upper surface of the substrate are connected via a second through-hole conductor, whereby, when considering a current path, only the second coil portion of the first coil is interposed between an adjacent first coil portion of the first coil and first coil portion of the second coil on the upper surface of the substrate, and thus a potential difference between the first coil portions is reduced, thereby suppressing a situation in which a large stray capacitance is generated in a gap between the first coil portions.

Claims5

Dependent claims

A coil component, comprising:

an element body;
a substrate provided in the element body and having a first main surface and a second main surface parallel to each other;
a coil body provided in the element body, the coil body having a first coil and a second coil arranged in a first direction, each of the first coil and the second coil including a first coil portion spirally wound on the first main surface of the substrate, a second coil portion spirally wound on the second main surface of the substrate, and a through-hole conductor provided through the substrate to electrically connect inner end portions of the first coil portion and the second coil portion to each other;
and
a second through-hole conductor provided through the substrate to electrically connect an outer end portion of the second coil portion of the first coil and an outer end portion of the first coil portion of the second coil to each other.

2 more elements

Dependencies are inferred from the claim text.