抑制浪涌电流用NTCR热敏电阻器的失效模型  

The failure mode of NTC thermistor for suppressing surge current

作　　者：陈后胜 曹湘君 

机构地区：[1]南京无线电十一厂,江苏南京210016

出　　处：《电子元件与材料》2001年第2期14-15,共2页Electronic Components And Materials

摘　　要：通过对抑制浪涌电流用NTCR热敏电阻器的失效样品进行电性能和显微分析得知，其失效机理在于微观结构不均匀及银层与瓷体的接触不良。建立了表面失效、内部缺陷、外观失效三种模型。确定了影响失效的因素及对策。The failure mechanism of NTC thermestors for suppressing surge current lies in uneven microstructure and poor contact between silver layer and ceramic body. The surface failure mode, interior defect mode, appearance failure mode are established. The failure factors are determined and the improvement is made. (2 refs.)

关 键 词：抑制浪涌电流 NTCR热敏电阻器 失效模型 

分 类 号：TN37[电子电信—物理电子学]