Technetters,

Industry standards (IPC, JEDEC....) for the "floor life" of components that
have been shown to be moisture sensitive are valid in environments with a
temperature of < 30 degrees C and a relative humidity(RH) of < 60%.  It
also states that ambient conditions exceeding 60% RH will require the user
to determine safe exposure times for these conditions.  Does anyone have
any experiences with ambient conditions above 60%RH and the affect on the
published floor life for the component?  Also, does anyone have any
experiences showing that if the RH is below the 60%, the floor life could
actually be longer that the published time frame?

Any input would be appreciated.  Thanks for the help.


Neal Driscoll
Senior Manufacturing Engineer
Rockwell Collins Avionics

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