Abstract: Compact low profile inductive devices, such as coils, transformers, generators etc. with a soft magnetic pipe or channel (M) etc. (core) of small diameter and thus short magnetic path, and long effective wire length. The length of the effective wire is determined by the length of the channel and/or by the number of turns (L). To form the windings it is also possible to use planar tracks (L) on a substrate (P) like e.g. a PCB. Some of the inductive components consist of vertically split windings, which are completed again, with the magnetic circuit around it. At (SST) the windings are sawn through and completed again. (W) are windows in the substrate for the magnetic circuits (M).