Soft magnetic alloy powder Dust core, magnetic component, and electronic apparatus

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The invention provides a soft magnetic alloy powder which is a soft magnetic alloy powder having a low coercivity, and with which it is possible to obtain a green compact magnetic core having a high magnetic permeability. A soft magnetic alloy powder comprising a composition formula (Fe(1-(alpha+beta))X1[alpha]X2[beta])(1-(a+b+c+d+e+f))MaBbPcSidCeSf. X1 is one or more elements selected from the group consisting of Co and Ni, X2 is one or more elements selected from the group consisting or Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O and rare earth elements, and M is one or more elements selected from the group consisting of Nb, Hf, Zr, Ta, Mo, W, Ti and V. The amount of each component contained is within a specified range. The amorphous rate X (%) is at least 85%.