Surface mounting component and mounted structure of surface mounting component

摘要

A surface mounting component (51) to be surface-mounted onto a mounting board by soldering comprises an isolated electrode (35) to be soldered to the mounting board and arranged on a mounting-surface (32) of the surface mounting component (51) so as to be isolated from other terminal electrodes (34), wherein the terminal electrodes (34) are arranged so as to surround the isolated electrode (35) on the mounting-surface, and wherein the single isolated electrode (35) per se takes an unsymmetrical shape to have a directional discriminating function or is provided unsymmetrically with respect to the mounting-surface to have a directional discriminating function.