关键词: 整流器, 热失控, 热阻, 反向偏置

Abstract: Most failure of rectifiers from field or heat testing were caused by thermal runaway. Therefore, it is of great significance to do research on the conditions which thermal runaway occurs and predict it. An analysis and forecast method was introduced based on the relationship between the temperature and the reverse leakage current of the rectifier. And the accuracy and practicability of the method was verified by an example.

Key words: Keywords:rectifier, thermal runaway, thermal resistance, reverse bias