Electronics Forum | Fri Apr 13 05:07:57 EDT 2001 | zam_bri
Hi Dave, Thanx for your reply. What is it in the process of manufacturing the capacitor that can go wrong until it can caused the chips to be chipped-off or cracks. I've encountered alot of this problem lately. First I thought it was our process t
Electronics Forum | Fri Apr 13 10:47:28 EDT 2001 | davef
I'll respond directly to your question about capacitor fabrication in a later posting, but more importantly and possibly more directly in response to the situation many hands touch your capacitors before you do. Each of these stockroom personnel, UP
Electronics Forum | Wed Apr 11 06:56:20 EDT 2001 | brownsj
Most of the component vendors I've dealt with will guarantee the solderability of the terminations for three years if the components are still packaged in a full reel. If the reel is part used we've kept them for 1 year and then used a wetting balanc
Electronics Forum | Wed Apr 11 06:56:46 EDT 2001 | brownsj
Most of the component vendors I've dealt with will guarantee the solderability of the terminations for three years if the components are still packaged in a full reel. If the reel is part used we've kept them for 1 year and then used a wetting balanc
Electronics Forum | Thu Aug 29 18:28:19 EDT 2002 | Dreamsniper
Semi conductor devices last for 5-10 years or more when in use. Since those parts are in stock and are not in use they are considered in good condition. The only concern that you got is how will you process them. We had the same problem before and it
Electronics Forum | Wed May 03 09:01:32 EDT 2017 | pavel_murtishev
Good day, Are there any IPC standards applying requirements to HASL PCB shelf life? Are there any exact figures such as one year for instance? Could you point me to standard numbers if they exist. Iny input would be appreciated. Regards, Pavel
Electronics Forum | Wed May 03 16:37:10 EDT 2017 | charliedci
I don't believe there should be any issues with the HASL finish. The issue is how long on the shelf and is a bake out required to remove moisture from PCB, as in any FR4 PCB's that may have had time to absorb moisture.
Electronics Forum | Mon May 15 12:36:12 EDT 2017 | edhare
I don't believe there should be any issues with > the HASL finish. The issue is how long on the > shelf and is a bake out required to remove > moisture from PCB, as in any FR4 PCB's that may > have had time to absorb moisture. > I don't believe
Electronics Forum | Sun Sep 01 05:39:36 EDT 2013 | leardkattiya
Hi, can someone give definition on pot life? does the pot life start once it's been taken out from fridge or the pot life starts once recommended thawing ends?
Electronics Forum | Thu Sep 05 22:33:28 EDT 2013 | davef
It depends: * If you're talking jars, I'd be as conservative as possible. So, 3 days from when the jar is removed from the frig would be my pot life limit. * If you're talking Semco cartridges, I'd be talking about 10 days from when the cartridge is
