Inductor Mountable on a Circuit Board

An inductor is disposed above and mounted on a printed wire board. The inductor includes a winding and a core. The winding includes first and second terminations that are electrically connected to the printed wire board at different locations. The core includes: a first section including magnetic material with a channel along an inner surface, to receive the winding, and ending at or above first and second bottom corners of the inner surface; a second section that is a mirror image of the first section including an inner surface that faces the inner surface of the first section; and a distributed gap that uniformly separates the first section from the second section except where the winding passes along the mirror-image channels. The winding lies along the distributed gap in the mirror-image channels, and the winding spatially divides the core into an upper and lower portions of equal volume.