Patent ID: 8471665
Filing Date: 2013-06-25
Classification: H01F

Abstract:
1. A magnetic element comprising: a first magnetic core including a coil which is wound by a predetermined number of turns; a second magnetic core which circumferentially surrounds said first magnetic core and which is combined with said first magnetic core, said second magnetic core having a cutaway portion; and a metal terminal which connects said coil and a mounting substrate, wherein said metal terminal includes: a mount portion which is connectable to said mounting substrate, said mount portion having first and second sides; a solder fillet forming portion extending from said first side of said mount portion along an outer wall of said second magnetic core; and a binding portion to which an end of said coil is bound, said binding portion extending from said second side of said mount portion along said outer wall of said second magnetic core, wherein a first air gap of 0.5 mm or more is located between a root of said binding portion and a root of said solder fillet forming portion; a concave portion is formed on said outer wall of said second magnetic core immediately under said cutaway portion toward a center of said second magnetic core, and said concave portion is located next to said solder fillet forming portion.