COIL COMPONENT, ELECTRONIC DEVICE, AND COIL COMPONENT MANUFACTURING METHOD

To suppress high frequency noise by increasing the impedance of a high frequency band.SOLUTION: A coil component 500 includes: a drum core 10 having a shaft portion 12 and flange portions 14 and 16 provided at both ends in an axial direction of the shaft portion 12; a first circulation portion 32 in which conductor wires 36 each having a core wire 38 and an insulating coating 40 covering the core wire 38 are wound around the shaft portion 12 in contact with the shaft portion 12 to be adjacent to one another in the axial direction; and a second circulation portion 34 in which conductor wires 36 are wound around the shaft portion 12 so as to be adjacent to one another in the axial direction at the outside of the first circulation portion 32. A shortest distance L2 between the core wire 38 of the second circulation portion 34 and the core wire 38 of the first circulation portion 32 is greater than a shortest distance L1 between the adjacent core wires 38 of the first circulation portion 32, and one end of the second circulation portion 34 includes a coil portion 30 connected to one end of the first circulation portion 32, and a pair of external electrodes 50a and 50b which are electrically connected to the other end of the first circulation portion 32 and the other end of the second circulation portion 34, respectively.SELECTED DRAWING: Figure 2 【課題】高周波数帯域のインピーダンスを高くして、高周波ノイズを抑制すること。【解決手段】コイル部品５００は、軸部１２と軸部１２の軸方向の両端に設けられる鍔部１４、１６とを有するドラムコア１０と、芯線３８と芯線３８を覆う絶縁被膜４０とを有する導線３６が軸部１２に接して軸方向に隣り合うように軸部１２に巻回される第１周回部３２と、導線３６が第１周回部３２の外側で軸方向に隣り合うように軸部１２の周囲に巻回される第２周回部３４と、を有し、第２周回部３４の芯線３８と第１周回部３２の芯線３８との間の最短距離Ｌ２は第１周回部３２の隣り合う芯線３８同士の間の最短距離Ｌ１よりも大きく、第２周回部３４の一端は第１周回部３２の一端に連結されるコイル部３０と、第１周回部３２の他端と第２周回部３４の他端にそれぞれ電気的に接続される一対の外部電極５０ａ、５０ｂとを備える。【選択図】図２