| 摘要 |
<p>PURPOSE: To obtain a thermistor device which can be manufactured easily and has small difference between the resistance values of two built-in thermistor elements. CONSTITUTION: This thermistor device is provided with an insulative case 1, positive temperature coefficient thermistor elements 5 and 6, tabular terminals 10 and 11, and spring terminals 12 and 13. The resistance value of one of two positive temperature coefficient thermistor elements, having the resistance value lower than the other one, is increased by a trimming treatment and the resistance value is breught close to the high resistance value of the positive temperature coefficient thermistor element. To be more precise, a part of electrode of the positive temperature coefficient thermistor element of low resistance value is removed by a laser beam.</p> |
