PTC THERMISTOR CHIP

摘要

A PTC polymer thermistor chip for surface mount assembly, which assures longtime connection reliability between electrodes and side leads. A first main electrode (12a) and a first auxiliary electrode (12b) are provided on a first face of a conductive PTC polymer hexahedron (11). A second main electrode (12c) and a second auxiliary electrode (12d) are provided on a second face on the opposite side of the first face. First and second side electrodes (13a, 13b) are formed of nickel plating thicker than 1/20 of the distances between the first and second main electrodes (12a, 12c) and extend from the side of the conductive polymer (11) to both upper and lower sides. The first and second side electrodes (13a, 13b) connect electrically between the first main electrode (12a) and the second auxiliary electrode (12d) and between the first auxiliary electrode (12b) and the second main electrode (12c), respectively.