A coil printed circuit board comprising: a first insulating layer having first and second surfaces that are opposite to each other; a first coil portion spirally formed in a first region on the first surface of the first insulating layer; a second coil portion spirally formed in a second region on the second surface of the first insulating layer; a first terminal formed outside of the first region on the first surface or outside of the second region on the second surface and is electrically connected to an outer end of the first coil portion; and a second terminal formed outside of the first region on the first surface or outside of the second region on the second surface, wherein the first and second coil portions are electrically connected in parallel to each other, one or plurality of intersection regions are provided in which a path extending from an inner end of the first coil portion to outside of the first region intersects with the first coil portion on the first surface, the first coil portion is parted in each intersection region, a lead portion is formed on the first surface to extend from the inner end of the first coil portion to outside of the first region on the path, the lead portion is arranged to pass between one and another portions of the first coil portion parted in each intersection region, the second terminal is electrically connected to the lead portion outside of the first region, the first insulating layer has first and second through holes in each intersection region, and the one and other portions of the first coil portion parted in each intersection region are electrically connected to the second coil portion via the first and second through holes, respectively; characterized in that a portion of the lead portion, which passes through the one or plurality of intersection regions from the inner end of the first coil portion has a width larger than the first coil portion. a first insulating layer having first and second surfaces that are opposite to each other; a first coil portion spirally formed in a first region on the first surface of the first insulating layer; a second coil portion spirally formed in a second region on the second surface of the first insulating layer; a first terminal formed outside of the first region on the first surface or outside of the second region on the second surface and is electrically connected to an outer end of the first coil portion; and a second terminal formed outside of the first region on the first surface or outside of the second region on the second surface, wherein the first and second coil portions are electrically connected in parallel to each other, one or plurality of intersection regions are provided in which a path extending from an inner end of the first coil portion to outside of the first region intersects with the first coil portion on the first surface, the first coil portion is parted in each intersection region, a lead portion is formed on the first surface to extend from the inner end of the first coil portion to outside of the first region on the path, the lead portion is arranged to pass between one and another portions of the first coil portion parted in each intersection region, the second terminal is electrically connected to the lead portion outside of the first region, the first insulating layer has first and second through holes in each intersection region, and the one and other portions of the first coil portion parted in each intersection region are electrically connected to the second coil portion via the first and second through holes, respectively; characterized in that a portion of the lead portion, which passes through the one or plurality of intersection regions from the inner end of the first coil portion has a width larger than the first coil portion.