Electronics Forum | Mon Nov 29 10:13:02 EST 2010 | vetteboy86
My research starts here. I'm just beginning to research the effects of using a leaded part in a no lead process. Before I began, I know there are temperature differences. The part in question has a 260 C spec. Next I would like to find out if any c
Electronics Forum | Thu Oct 28 05:49:41 EDT 2004 | Rob
Any comments to add Dave?
Electronics Forum | Thu Nov 04 12:41:37 EST 2004 | cobar
Definetely 245�C
Electronics Forum | Wed Oct 20 07:55:02 EDT 2004 | Rob
Gentlemen, Thanks for your feedback - I think we are going to have to stay with the parts we are using. Cheers, Rob.
Electronics Forum | Fri Nov 05 05:06:18 EST 2004 | rlackey
Thanks Mark, we're not going to go anywhere with that particular supplier now. Cheers, Rob.
Electronics Forum | Mon Nov 08 12:50:04 EST 2004 | Rob
Thanks Dave, I'm guessing they either were just hoping they'd be ok, or were suppling them to people using nitrogen. Cheers, Rob.
Electronics Forum | Mon Oct 18 12:55:47 EDT 2004 | marc
45 seconds from 230-245C. Check your paste material of choice for recomended profile peak temp and TAL. If you have not selected a lead free material check out the major paste suppliers on their lead free material offering and review the specs.
Electronics Forum | Mon Nov 08 11:00:53 EST 2004 | davef
It's possible your supplier has not thought through the results of their conversion to lead-free throughly. We'd expect something like: Reflow Parameters||Pb Assy||Pb Free Peak Temp.||235�C �5�C||255�C �5�C Time Within 5�C Peak Temp.||20 to 40 sec.|
Electronics Forum | Mon Oct 18 12:02:06 EDT 2004 | Rob
Hi Guy's, Sorry about this, but yes it's another lead free related question. We are looking at using a Chinese SMD DC-DC Converter in a new design, whilst keeping one eye on the approaching Lead-free issue. The manufacturer claims that these are O
Electronics Forum | Mon Oct 18 22:15:11 EDT 2004 | KEN
I have two industry leading customers that have specific requirements for components to survive 30 seconds above 230C. In one case I have a custom ASIC that is heat sinked on the die (to the PCB). The sink pulls heat out of the lead frame very effi
