PURPOSE: To obtain such coil parts that their windings wound around a ring-like core are not damaged by burrs at the corner of the core even when the windings are pressed against the core at the time of mounting the coil parts on a board and the main body of the core parts is not damaged even when the main body comes into contact with other parts when the main body is moved on the board.
CONSTITUTION: The main body 1 of this core parts formed by winding windings 41 and 42 around a ring-like core 3 is mounted on a board 2 by putting the core 3 in the recessed section 5 of the board 2. The terminals of the windings 41 and 42 are soldered after they are wound around lead pins 7 and 7. The width A of the recessed section 5 is made equal to or a little larger than the width B of the core 3.
TAJIMA TAKASHI
KUMADOU TETSUO
