Electronics Forum: cogiscan msl (5)

What does MSL 4 on a component package means?

Electronics Forum | Fri Jan 04 15:34:49 EST 2002 | fmonette

As Dave mentioned we have put together a MSD audit checklist to insure that your internal procedure is complete and in line with J-STD-033. It's a free download at http://www.cogiscan.com, click on Moisture Sensitive Devices to access the MSD Knowle

Moisture Sensitive Devices

Electronics Forum | Thu May 06 13:19:57 EDT 2004 | fmonette

Hi Rob, You might want to consider changing your current procedure. Components classified MSL 4 have only a 72 hours floor life at 30C/60%RH. Even if you consider the de-rating factor (table 7-1 in J-STD-033A), at 50% this maximum exposure time wil

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