Patent attributes
In a choke coil adapted to be surface-mounted on a board, a drum core including a core rod, and a circular first flange provided on a lower end of the core rod. A coil is wound around the core rod. Each of a pair of electrodes is electrically connected to an associated one end of the coil, and includes a first part provided on a lower face of the first flange adapted to oppose a connection land on the board and a second part provided on a side face of the first flange. The second part of each of the electrodes is adapted to hold a solder fillet together with the land. In a case where a hypothetic square circumscribing an outer periphery of the first flange is defined, the second part is located within the square and on a line connecting diagonal corners of the square.