COIL COMPONENT

To provide a coil component which enables the reduction in thickness, and which is superior in saturation current, inductance, magnetic permeability and core loss value.SOLUTION: A coil component 1000 comprises: a main body 100 having one face 105 and the other face 106 opposed to each other, and a plurality of wall faces 101, 102, and so on, in which the distance from the one face 105 to the other face 106 is 0.65 mm or less (except 0); and a coil part 300 buried in the main body 100. The main body 100 contains Fe-Si-B-Nb-Cu based metal magnetic powder represented by the chemical formula 1 below. The Fe-Si-B-Nb-Cu based metal magnetic powder includes crystal grains of 20 nm or smaller (except 0). [Chemical Formula 1] FeSiBNbCu(where 73 atom%≤a≤77 atom%, 10 atom%≤b≤14 atom%, 9 atom%≤c≤11 atom%, 2 atom%≤d≤3 atom%, 0.5 atom%≤e≤1 atom%, and a+b+c+d+e=100).SELECTED DRAWING: Figure 2 【課題】薄型化を可能にするとともに、飽和電流、インダクタンス、透磁率及びコアロス値に優れたコイル部品を提供する。【解決手段】コイル部品１０００は、互いに向かい合う一面１０５及び他面１０６並びに複数の壁面１０１、１０２〜を有し、一面１０５から他面１０６までの距離が０．６５ｍｍ以下（但し、０を除く）である本体１００と、本体１００に埋設されたコイル部３００と、を含む。本体１００は、下記化学式１で表されるＦｅ−Ｓｉ−Ｂ−Ｎｂ−Ｃｕ系金属磁性粉末を含み、Ｆｅ−Ｓｉ−Ｂ−Ｎｂ−Ｃｕ系金属磁性粉末は、２０ｎｍ以下（但し、０を除く）の結晶粒を含む。［化学式１］ＦｅａＳｉｂＢｃＮｂｄＣｕｅ（ここで、７３原子％≦ａ≦７７原子％、１０原子％≦ｂ≦１４原子％、９原子％≦ｃ≦１１原子％、２原子％≦ｄ≦３原子％、０．５原子％≦ｅ≦１原子％、及びａ＋ｂ＋ｃ＋ｄ＋ｅ＝１００を満たす）【選択図】図２