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Nitrogen and dry cabinet

Yngwie

#20930

Nitrogen and dry cabinet | 29 July, 2002

Is there a difference between the Nitrogen cabinet vs Dry cabinet ? How does this helps in creating safe environment for MSD storage. I felt puzzled when my customer rejected me coz' I'm using the Nitrogen cabinet instead of dry cabinet. Except for the long cost in-effectiveness, I think it is OK as long as the humidity met 10%, right ? Can you expert explains.

thank you

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#20944

Nitrogen and dry cabinet | 29 July, 2002

Good question. What did your customer say?

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Yngwie

#20948

Nitrogen and dry cabinet | 29 July, 2002

The customer said " The Nitrogen PPM is questionable". LIke what I said, as long as I have met the 10% RH, it should be OK, rite ?

thx

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#20950

Nitrogen and dry cabinet | 29 July, 2002

Rite. Moisture, not N2, in the air is the issue.

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#20956

Nitrogen and dry cabinet | 30 July, 2002

Truthfully, there are pro's and con's for both technologies. (put cost of ownership aside for one moment) Nitrogen won't dry humidified components as rapidly as a desiccant dry box. I'm talking about a self regenerating dry box that uses molecular sieves technology that can maintain RH at or below 1%. However, flowing nitrogen displaces the airborn contaminants (common corrosive gasses) that mix with moisture and start a chain reaction of oxidation on metals. You need to protect against both, but the emphasis of the JEDEC spec's so far have focused on water and thermal and mechanical issues. For more on the effects of corrosive gasses in component packaging you can read the tutorial on our website http://www.dasalintercept.com

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