A common mode choke coil comprises: a holder including side walls which have
wire
guide strips respectively formed at their sides and which have vertical guide grooves
and horizontal flange stoppers both formed at their inner side surfaces; a coil
assembly with edgewise windings of a rectangular wire provided around a bobbin
with flanges; and a core securing plate spring, wherein the coil assembly is fixedly
set in a correct position inside the holder such that protrusions formed at the
flanges are put through the guide grooves thereby fixedly holding the bobbin in
place horizontally while the flanges are locked by the flange stoppers thereby
fixedly holding the bobbin in place vertically, and wherein lead wires of the edgewise
windings are bent at upper ends of the wire guide strips, and then extend along
the wire guide strips.
