Coil component and manufacturing method thereof

#Field of the Invention

#The present invention relates to a coil component and a manufacturing method of the coil component, and particularly to a coil component that uses a drum core and a manufacturing method thereof.

#Description of Related Art

#The above features and advantages of the present invention will be more apparent from the following description of certain preferred embodiments taken in conjunction with the accompanying drawings, in which:

#FIG. 1 is a schematic perspective view showing the appearance structure of a coil component according to a first embodiment of the present invention;

#FIG. 2 shows an equivalent circuit of the coil component shown in FIG. 1;

#Preferred embodiments of the present invention will be explained below in detail with reference to the accompanying drawings.

#FIG. 1 is a schematic perspective view showing the appearance structure of a coil component 10 according to the first embodiment of the present invention.

#The coil component 10 of the present embodiment is a pulse transformer of a surface-mount type. As shown in FIG. 1, the coil component 10 includes a drum core 11, a plate core 12 that is bonded to the drum core 11, and coated conductive wires S1 to S4 that are wound around a winding core portion 11a of the drum core 11. The coil component of the present invention is not limited to the pulse transformer. The coil component of the present invention may be any other transformer component such as a balun transformer or step-up transformer, or may be a filter component such as a common mode choke coil.