贵司规格书(Page4)记载如下:
第一处记载θja:54℃/W,θjc:4℃/W

第二处记载θja:23.9℃/W,θjc(top):16.7℃/W,θja(top):1.7℃/W

想要确认,哪一个记载是正确的?
我的实际应用如下,应该按照哪个参数来进行计算?

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