Thermistor chips for surface mounting

摘要

A thermistor chip has an NTC thermistor element with outer electrodes formed on its end surfaces. Diffused layers, having a higher specific resistance than the material of the thermistor element, are formed proximally to all externally exposed surfaces of the thermistor element by subjecting an inorganic material and the thermistor element together to a firing process at 100-1300° C. The diffused layers are free of any insulating layer thereupon and substantially entirely exposed externally, except where the outer electrodes are formed.