| 摘要 |
本发明提供一种突波吸收元件，包括：变阻体基体；一对电极，系电性连接于前述变阻体基体之两端面且夹着前述变阻体基体；外部导线，系电性连接于前述一对电极之各者；外装构件，系被覆前述电极；以及热膨胀体，系设置于前述一对电极之间，且藉由前述变阻体基体产生之热而不可逆地膨胀，而使前述一对电极之中至少一方从前述变阻体基体分离；前述热膨胀体系在冷却后亦维持已膨胀的状态。前述热膨胀体开始膨胀的温度系例如180℃以上。 This invention provides a surge absorbing element containing a varistor body, a pair of electrodes electrically connected to the two end surfaces to hold the varistor body, external leads electrically respectively connected to each one of the pair of the electrodes, an external attachment member for covering the electrodes, a thermal expansion body disposed between the pair of electrodes for removing at least one of the pair of electrodes away from the varistor body by irreversible expansion by heat generated by the varistor body, wherein the thermal expansion body starts expansion at the temperature of, for example, at 180℃ |
