摘要
GJB/Z 148-2006《军用电容器选择与应用指南》提出的10℃法则,是表征元件寿命与温度应力关系的简便估算方式,它对于估算实际的使用条件下多层瓷介电容器的长期贮存寿命有着重要的意义。列举了国外对于多层瓷介电容器激活能的研究成果,并通过经典的温度加速模型与10℃法则的关系,证明了10℃法则对于多层瓷介电容器的加速寿命试验的适用性;同时认为根据10℃法则进行贮存寿命试验所得到的结果比使用经典的温度加速模型得到的结果更加可信。
The 10 ℃ principle mentioned in GJB/Z 148-2006 ＂Capacitors,selection and use of military＂ is a simple formula for characterizing the life of electrical component and the temperature stress,which is important for us to forecast the long term storage life of MLCCs under actual condition.In this paper,some examples about the model activation energies（Ea） of MLCCs are listed.The applicability of 10 ℃ principle for the accelerated life testing（ALT）of MLCCs is demonstrated based on the relationship between the classical temperature acceleration model and the 10℃ principle..It is shown that the result of ALT based on the 10 ℃ principle is more credible than that based on the classical temperature acceleration model.
出处
《电子产品可靠性与环境试验》
2011年第4期21-24,共4页
Electronic Product Reliability and Environmental Testing
