Stacked inductive device and methods of manufacturing

A bobbinless inductive device, comprising;

• a plurality of winding elements comprising bonded wire, wherein each winding element further comprises a plurality of winding end that can be terminated;
• and
• at least three magnetically permeable core elements, wherein said magnetically permeable core elements are disposed in a substantially co-axial and coplanar arrangement with respect to an external substrate to which the inductive device is mounted while collectively forming a non-circular outer profile including a plurality of coplanar apertures disposed on a bottom surface thereof, said at least three magnetically permeable core elements, each comprising a substantially identical shape and mated to one another in both a front-to-front and a front-to-back disposition;
• wherein said plurality of winding elements each comprise a plurality of winding ends and reside at least partly inside respective cavities formed by said substantially co-axial magnetically permeable core elements with said plurality of ends protruding through said one or more coplanar apertures;
• and
• wherein said front-to-front and said front-to-back disposition varies the size of said respective cavities formed by said substantially co-axial magnetically permeable core elements.