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咨询一下，那个ucc25630的demo，换了一个to220的管子就炸了，一般会是什么原因造成了？tks！
不一样的型号，同样的参数
你好， 如果换的管子品质不好的话，耐压等要求可能不满足，建议在正规渠道购买。
