Electronics Forum | Wed Feb 01 08:12:04 EST 2006 | Chunks
OK, this is easy. You say HIGH fall out, so I can assume 25 or 50%? If so, run 10 without the heat gun and 10 with. This should show you if the heat gun process is the cause or not. If the relay is a surface mount, hand solder them on. If it's a
Electronics Forum | Tue Jan 31 15:15:13 EST 2006 | russ
Heat guns used improperly will definitely damage components. You must have a controlled heat gun that can be set to the max temp you want pb =215C max, Pbfree maybe 240C max. This heat gun must not be able to be adjusted or you must have total trus
Electronics Forum | Tue Jan 31 15:51:04 EST 2006 | russ
Relays huh? I can tell you from previous experience that relays are not a good heat gun candidate. Did you check how long this part can withstand the 240? I do not know what the 4 setting is on a liester but it is probably well in excess of the 24
Electronics Forum | Wed Feb 28 21:42:56 EST 2007 | davef
Very smart, Chunks.
Electronics Forum | Tue Jul 19 11:52:24 EDT 2016 | oleksz
Thank you Pavel. Aleksander
Electronics Forum | Wed Feb 23 18:57:58 EST 2000 | Mike Vina
I don't know if this is the real answer you are looking for, but the EIA-625 and EIA-583 standards may provide you with the depth. http://www.jedecstandards.com/
Electronics Forum | Wed Feb 23 18:57:58 EST 2000 | Mike Vina
I don't know if this is the real answer you are looking for, but the EIA-625 and EIA-583 standards may provide you with the depth. http://www.jedecstandards.com/
Electronics Forum | Tue Jul 19 08:26:46 EDT 2016 | pavel_murtishev
Aleksander, The answer is no. Solder deposit being printed is 80um-150um in height depending on PCB design what is two times higher than any track covered by solder mask. Molten solder will merely center the component. QFNs are prone to soldering
Electronics Forum | Wed Feb 28 11:43:20 EST 2007 | realchunks
Marcin, Think outside the box. If you are glueing the SMT part down, why not have an aperture cut in your stencil (or recut a stencil) between the SMT part and thru-hole. Wave solder hates SMT glue. This will get rid of your solder short problem
Electronics Forum | Tue Aug 22 14:59:55 EDT 2000 | Mike Naddra
What does the reflow profile look like , the question I had was surrounding the higher reflow temperature and the max temperature that lowest thermal mass components will see. Some other questions that I had were surrounding the components , what of
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