Electronics Forum | Thu Mar 24 12:59:14 EST 2005 | DasonC
Desicattor is used for storage and not the indicator or meter to check the humidity. I am not sure that the HIC will affect the solderability, if yes, when they pack together with the MSD then we also have solderability problem on component. Per J-
Electronics Forum | Wed Jan 22 07:05:11 EST 2020 | dontfeedphils
Just make sure they're in different parts of the bag before vacuum sealing. After the bag is sealed, neither will be going anywhere (unless your sealer isn't up to snuff and the bag leaks).
Electronics Forum | Wed Jan 22 08:23:49 EST 2020 | dgiordano
Thank You! We don't vacuum seal - we just heat seal. The standard doesn't require vacuum sealing, correct?
Electronics Forum | Wed Jan 22 08:25:27 EST 2020 | dontfeedphils
I don't believe it does, but don't quote me on that. Vacuum sealers can be had for pretty cheap.
Electronics Forum | Thu Jan 23 07:41:32 EST 2020 | stephendo
Too much vacuum can be very bad. It can create isolated pockets where the desiccant can not do anything. It can poke holes in the bag at corners. It can even pull moisture into the bag if too strong.
Electronics Forum | Tue Jan 21 16:11:05 EST 2020 | dgiordano
3.3.5.1 HIC Placement states "The HIC may be placed anywhere in the MBB, but should not be placed under, on top or touching a desiccant pouch." How do you assure that the HIC doesn't touch the desiccant pouch? Do you secure the HIC to the reel or to
Electronics Forum | Wed Sep 23 14:30:05 EDT 2015 | deanm
"...air evacuation is not required (Figure 3-5). Light air evacuation may be used to reduce the packaging bulk and enhance carton packing (Figure 3-6). Full evacuation shall not be used as it will impede desiccant and HIC performance and possibly lea
Electronics Forum | Tue Jul 17 00:10:32 EDT 2012 | amitsindwani
Referring to IPC/JEDEC J-STD-033B.1 section 3.3.2.2 'The amount of desiccant used, per moisture barrier bag, shall be based on the bag surface area and WVTR in order to limit the interior relative humidity in the MBB to less than 10% at 25°C.' So wha
Electronics Forum | Mon Jul 16 15:47:52 EDT 2012 | davef
Here's what Desco says ... Humidity Indicator Card (HIC) A card on which a moisture-sensitive chemical is printed such that it will change color from blue to pink when the indicated relative humidity is exceeded. This is packed inside the moisture-se
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