Soft magnetic alloy powder, magnetic core, magnetic component and electronic device

A soft magnetic alloy powder comprising:

• a main component having a composition formula of
• (Co(1−(α+β))X1αX2β)(1−(a+b+c+d+e+f))MaBbPcSidCreSf(atom number ratio),
• wherein X1 represents one or more selected from the group consisting of Fe and Ni,
• X2 represents one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Bi, N, O, C, and rare-earth elements,
• M represents one or more selected from the group consisting of Nb, Hf, Zr, Ta, Mo, W, Ti, and V,
• 0.001≤a≤0.140,
• 0.180≤b≤0.220,
• 0.010≤c≤0.050,
• 0≤d≤0.250,
• 0≤e≤0.030,
• 0≤f≤0.010,
• 0.160≤b+c+d+e+f≤0.430,
• 0.500<1−(a+b+c+d+e+f)<0.840,
• α≥0,
• β≥0, and
• 0≤α+β<0.50 are satisfied,
• the soft magnetic alloy powder has a glass transition point Tg and a melting point Tm,
• 900° C.≤Tm≤1200° C. is satisfied, and
• a coercivity He of the soft magnetic alloy powder is 0.04 Oe or less.