PURPOSE: To sharply reduce the storage capacity and the amount of leakage magnetic flux of a choke coil, and to increase the degree of freedom for design of the shape of a coil.

CONSTITUTION: The title choke coil is constituted by meanderingly wiring a conducting wire 7 having an insulating film on a magnetically soft tabular core 4 with a plurality of grooves 8 arranged in parallel, and by stacking a tabular core 9, having a groove 10 corresponding to a flat-surfaced tabular core 5 or the above-mentioned grooves 8, maintaining a certain gap 6. Storage capacity and leakage magnetic flux can be reduced sharply by meanderingly wiring the conducting wire 7, not wiring it in multilayer.