Abstract: A core-coil device includes: a printed circuit board having upper and lower surfaces and formed with a pair of through-holes that are spaced apart from each other and that extend through the upper and lower surfaces, the printed circuit board being further formed with at least one conductive coil winding that surrounds one of the through-holes; and at least one loop-shaped magnetic core of an integrally molded single piece extending through said one of the through-holes in the printed circuit board.

Abstract: An inductor includes: a core; a coil wound around the core and having two end portions and a coil portion extending between the end portions; and a green compact made from magnetic powder and enclosing the coil portion of the coil and the core in such a manner that the end portions of the coil are exposed from the green compact.