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PTH12000 inductance is hot even without loading

huang jory
Prodigy 40 points


PTH12000  inductance is hot even without loading, About 45 degree, i donot know whether it is ok. When 2A loading it is about 50 degree.

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    TI__Expert 3105 points

    出现这种情况的时候，输入端电流是否也很大？明显的电源效率非常低？若是，则是不正常的，你要检查下模组上是否有连锡或器件损坏或微短路导致有漏电流而发热。

    另外是所以模组都这样？或者是在某个工序后出现这种现象？这些也需要关注下，但是直接原因应该是上面所提到的点！