Patent ID: 7109841
Filing Date: 2006-09-19
Classification: H01C,Y10T

Abstract:
1. A surface-mount positive temperature coefficient thermistor, comprising: a disk-shaped positive temperature coefficient thermistor element having electrodes provided on opposing main surfaces thereof; and an insulating case having an inner space with said positive temperature coefficient thermistor element inserted therein, and in which a pair of metal terminals are inserted, said pair of metal terminals being arranged to make electrical contact with the respective main surface electrodes of said positive temperature coefficient thermistor element, and to sandwich therebetween said positive temperature coefficient thermistor element in said inner space; wherein said insulating case includes a pair of main surfaces that are substantially parallel to the opposite main surfaces of said positive temperature coefficient thermistor element disposed in said inner space, a pair of opening side surfaces each having an opening portion where said inner space of the insulating case is exposed to the outside, and a pair of end surfaces each having a terminal insertion hole provided therein; the pair of end surfaces are disposed at opposite ends of the pair of main surfaces; each of the terminal insertion holes extends entirely through a respective one of the pair of end surfaces from outside the insulating case to the inner space of the insulating case; and one end portion of each of said pair of metal terminals is inserted into the inner space of said insulating case from outside the insulating case via a respective one of said terminal insertion holes provided in the pair of end surfaces of said insulating case, and wherein the other end of each of said pair of metal terminals extends to one of the main surfaces along the outer wall surface of said insulating case.