Electronics Forum | Mon Jan 22 21:24:33 EST 2001 | edger_w
Hi! Mike My company is using the electric dry box and it can controlled less than 10% within 2.5 hours if we are not going to open the door. In normal working environment and it still can't control around 30%. Is it something that you are looking
Electronics Forum | Tue Jan 16 18:00:50 EST 2001 | mikestringer
Hi everyone I am in the process of reviewing our storage of SMT components. At the moment they are pretty much on open shelves in the factory environment. We endevour to reseal components labled 'moisture sensitive' in their original packaging, bu
Electronics Forum | Mon Jan 22 20:14:52 EST 2001 | davef
Take note that contrary to popular belief, it is not acceptable to assume that the floor life clock will be temporarily stopped when components are put back in dry storage following exposure to ambient conditions exceeding one hour. ... why doesn�t
Electronics Forum | Tue Jan 16 21:27:56 EST 2001 | davef
No we do not use such a storage unit. We say our preferred environment is within: * 30%RH / 84�F * 30%RH / 72�F * 70%RH / 78�F * 70%RH / 68�F J-001C says [words to the effect of]: * At 30%RH and below you�d better make sure your ESD control program
Electronics Forum | Sat Jan 20 20:54:03 EST 2001 | fmonette
Dear Mike, As you might have noticed from the labels on the dry bags, the maximum floor life is specified by the component manufacturer and it can range from 1 year (level 2) down to a few hours after mandatory bake (level 6). This limit is based o
Electronics Forum | Tue Jan 23 09:03:00 EST 2001 | fmonette
This guideline is actually in the IPC/JEDEC standard J-STD-033, May 1999 (although it is not spelled out very clearly, thus the current confusion in the industry). The technical reason is that moisture diffusion is a very slow process. Once parts ha
Electronics Forum | Thu Mar 18 14:33:46 EDT 2010 | jdumont
Is your peak reflow temp exceeding the LED spec? We store our SMT LED reels on the rack with the rest of the discreets and have never seen this issue...
Electronics Forum | Thu Apr 12 00:56:20 EDT 2007 | Jani
Our SMT production and storage area is air-conditioned, constant temperature is maintained but the humidity is not controlled , the raw SMT material is stored in a "Drier" cabinet, but since we assemble hybrid SMT and thru-hole PCB assemblies, the SM
Electronics Forum | Thu Apr 12 13:04:47 EDT 2007 | slthomas
Handling requirements of all classifications of moisture sensitive devices is found in J-STD-033. It really isn't an issue for most parts unless they're going to reach reflow temperature again, which is unlikely unless you're removing a nearby compo
Electronics Forum | Mon Nov 09 09:44:22 EST 2015 | davef
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