Patent ID: 7403631

Claim:
An electro-acoustic transducer configured so as to be mounted on an external circuit board, comprising: a transducer body having an internal circuit board; coil spring terminals which are contactable with a conductive portion of the internal circuit board; and a terminal holder mounted to the internal circuit board so as to hold the coil spring terminals, wherein the electro-acoustic transducer is configured so that the coil spring terminals are elastically compressed and deformed for permitting the internal circuit board to be conductive with the external circuit board when the transducer is mounted on the external circuit board, the coil spring terminals include: a small diameter coil spring terminal; and a large diameter coil spring terminal arranged in a manner of surrounding the small diameter coil spring terminal, and the terminal holder is provided with at least one clamping portion for clamping one of the coil spring terminals between the terminal holder and the internal circuit board.