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'[EE] Moisture sensitive devices'
2011\07\09@174920 by David

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I bought a number of through hole IR receivers, which I used to test a simple device.  Subsequently I have designed a board and ordered up some SMD versions of the same thing (http://tinyurl.com/665gafn).

However, the bag comes with a rather nice sticker explaining how these are moisture sensitive.  In the bag is a humidity sensing patch and a lot of warnings.

This is a hobby board and I'll only make one or two, but I'm wondering how moisture sensitive these things are.  In general, are moisture sensitive parts a pain?  Or am I going to be OK once I've soldered them up?

Davi

2011\07\09@183328 by Oli Glaser

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On 09/07/2011 22:49, David wrote:
> I bought a number of through hole IR receivers, which I used to test a
> simple device.  Subsequently I have designed a board and ordered up some
> SMD versions of the same thing (http://tinyurl.com/665gafn).
>
> However, the bag comes with a rather nice sticker explaining how these
> are moisture sensitive.  In the bag is a humidity sensing patch and a
> lot of warnings.
>
> This is a hobby board and I'll only make one or two, but I'm wondering
> how moisture sensitive these things are.  In general, are moisture
> sensitive parts a pain?  Or am I going to be OK once I've soldered them up?
>
> David

For a hobby board I wouldn't worry - generally the moisture warnings are for reflow, where the package can crack during reflow if it carries excess moisture.
If you check the datasheet it says to reflow within 72hrs of opening the dry pack, and gives information regarding storage conditions and what to do if the devices have absorbed too much moisture.
Since I assume you will be hand soldering though, none of this should be relevant to you.
If you are planning to use reflow method though, then follow the instructions mentioned above in the datasheet.

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