Patent ID: 9257223
Filing Date: 2016-02-09
CPC Classification: H01F

Claim Text:
1. An inductor that uses soft magnetic alloy powder-containing resin that contains amorphous soft magnetic alloy powder, which resin is used as a sealing material that seals a coil wound around a winding core of a core, wherein: the soft magnetic alloy powder-containing resin contains two groups of large and small particles separately dispersed in a cured resin, and seals the coil without compression, said two groups of large and small particles having a first peak and a second peak in their particle size distribution, respectively; a particle size corresponding to the second peak is equal to or smaller than one-half a particle size corresponding to the first peak, and an magnitude ratio (abundance ratio) of the second peak and first peak is 0.2 or more but 0.6 or less; and a top flange is formed integrally on a top end of the winding core, and a bottom flange is formed integrally on a bottom end of the winding core, wherein the bottom flange is larger than the top flange to inhibit dripping of the sealing material when the material is applied.