Loop type coil parts

Abstract

One inventive aspect relates to a low back type loop type coil part which may facilitate confirmation of quality of soldering. The loop type coil part comprises a core including a spool arranged vertically to a mounting side and a plate-like flange provided at an end of the spool to come in contact with the mounting side. A coil lead is wound around the spool, and an end of the coil lead is soldered and fixed to a terminal electrode of a bottom surface of the flange. A protruding part is provided at a part of a side surface of the flange in a length direction. A recess is formed in the bottom surface of the flange so as to be in contact with the protruding part of the side surface and a non-protruding part adjacent to the protruding part. The terminal electrode is provided to be continuous across an inner wall surface of the recess, a bottom surface of the protruding part, and a bottom surface of the non-protruding part. Accordingly, by using the protruding size of the flange, the fillet to facilitate confirmation of quality of soldering can be formed without increasing the thickness size of the flange of the core and the height size of the core.