Electronics Forum: leaded components in a lead free process (Page 1 of 38)

lead free components in leaded process

Electronics Forum | Thu Jul 19 11:59:21 EDT 2007 | hussman

Phil is wrong. In the real world, we know that part mfgers have not changed every one of their parts to make them "high temp". They just changed the plating. Anyone who thinks otherwise, has never run a profile or touched a warm board coming out o

lead free components in leaded process

Electronics Forum | Mon Jul 16 09:53:36 EDT 2007 | ed_faranda

Yes, you can use lead-free parts in a leaded process. And the other is true as well, no-lead free parts in a leaded process. BUT, you should not use leaded parts through a non-lead wave solder process and of course, your board will not be RoSH.

lead free components in leaded process

Electronics Forum | Thu Jul 19 04:38:33 EDT 2007 | chrispy1963

I took a Lead Free troubleshooting Class at SMTA in Chicago last September taught by Phil Zarrow. He told us during that seminar that its not a good practice to cross contaminate Leaded and Lead Free components but IF it is necesary than using lead

lead free components in leaded process

Electronics Forum | Fri Jul 20 08:09:09 EDT 2007 | chrispy1963

In passives I dont know if anything changed at all other than the terminal plating. As for Active components there has been much engineering done to allow for the extra heat needed to liquify say SAC305 or other lead free pastes without damage to th

lead free components in leaded process

Electronics Forum | Mon Jul 16 10:17:22 EDT 2007 | realchunks

Yes you can use no-lead parts in a leaded process. Your solder joints will be weaker than they once were unless you change your solder paste. You can try to improve this by running a hotter reflow temp, but be careful since your flux was not design

lead free components in leaded process

Electronics Forum | Fri Jul 20 08:16:38 EDT 2007 | chrispy1963

I agree that it would be crazy to think that every part a company manufactured had to be re-engineered to allow for higher temps. Out of the question and I NEVER implied that at all. What I said was that Zarrow told us that it was alright to use lea

lead free components in leaded process

Electronics Forum | Mon Jul 16 10:51:09 EDT 2007 | patrickbruneel

D. Hillman, et al., �The Impact of Reflowing a Pb free Solder Alloy Using a Tin/Lead Solder Alloy Reflow Profile on Solder Joint Integrity,� International Conference on Lead-free Soldering, CMAP, Toronto, Ontario, Canada, May 24-26, 2005, http://www.

lead free components in leaded process

Electronics Forum | Mon Jul 16 10:26:54 EDT 2007 | davef

Ed: We agree with you that leadfree parts can be used with leaded paste. We disagree that lead part can be used with leadfree paste. Here is link to a previous discussion here on SMTnet on the topic: http://www.smtnet.com/forums/Index.cfm?CFApp=1&M

lead free components in leaded process

Electronics Forum | Fri Jul 13 16:07:42 EDT 2007 | wana

Hello All. Can the experts in the lead free field guide me to the articles / data confirming that it is OK to use lead free components in the normal "leaded" (Pb) SMT process. And also if any changes in the process would be required to be made. Th

lead free components in leaded process

Electronics Forum | Mon Jul 16 10:28:08 EDT 2007 | wana

Thanks guys for the suggestions. But, what I am looking for is data, papers, articles to support this process of using lead free parts in leaded process. Again thanks for any help that you can provide.

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