Yes, you have to.  The 30 u inch has +/- 10 ....it would be too thick....(it
is hard gold for insertion connector...not a very fast dissolving one)...my
2 cents
                                     jk
At 04:20 PM 7/31/00 EDT, you wrote:
>Hi ya'll!
>
>We've got a board here that we're going to be assembling that is transferring 
>from one of our other plants. They sent us a "Gold Board" so that we could 
>look at it and have it in front of us to help when we write the work 
>instructions.
>
>It's a all PTH board and quite large. All along one edge of the board there 
>are these right-angle headers. They're from FCI/Berg and gold plated. 
>
>I noticed on the "Gold Board" it looked like they had been pre-tinned. I 
>hadn't ever seen that before. I went back to the stockroom and checked the 
>parts we had back there, and the whole header was gold plated. I called our 
>sister plant and asked if they pre-tinned the headers before installing them. 
>They said they did. I asked is this something the customer requested and they 
>said no, but that it was something you ALWAYS did when you are dealing with 
>gold plated parts...
>
>I went to FCI's web page to see how much gold was plated on them, but I 
>couldn't find the exact part there (they're still updating the web page with 
>part numbers since they bought Berg). But the gold plating thickness that I 
>read on the page with similar parts was either 30-µin., or 15-µin...that 
>doesn't seem to me like there's enough there to worry about gold 
>embrittlement, especially with a PTH joint...
>
>Do we REALLY need to pre-tin these things?
>
>Thanks!
>
>-Steve Gregory-
>
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