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To what do moisture sensitivity levels correspond?

April 26, 2017correspond levels moisture

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To what do moisture sensitivity levels correspond?

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Moisture sensitivity level classifications correspond to a predetermined floor life of a semiconductor device or IC package. For example, a package that is classified as level 1 can be stored at =30°C/85% RH for an unlimited time prior to reflow soldering. A level 3 classified package can be stored at =30°C/60% RH for only 168 hours prior to reflow soldering.