Electronics Forum | Sun May 06 15:44:44 EDT 2001 | surteess
Can someone point me in the right direction (with a standard) as to how much gold you should specify for spring contacts - there is a huge variation available in thickness (and price!!). thanks Steve
Electronics Forum | Mon May 07 17:17:09 EDT 2001 | davef
500 insertions � 50 m gold => 300 insertions � 30 m gold => 50 to 75 insertions � 20 m gold => 10 insertions.
Electronics Forum | Mon May 14 20:35:06 EDT 2001 | davef
You're correct. The units should be micro inches. By the by, this gold always should be a hard gold (99.96%-99.97% pure) with a Knoop hardness range of 130 to 200 (optimum 170).
Electronics Forum | Tue May 22 18:21:15 EDT 2001 | davef
Again not quite what your looking for, but close, consider IPC-2221, Generic Standard On Printed Board Design, Para. 4.4.4 for minimum requirements for edge board connectors, as a baseline.
Electronics Forum | Tue May 29 15:00:15 EDT 2001 | surteess
Sorry guys but you missed the point - I am looking at thicknesses for SPRING contacts - such as the ones used in the telephone plugs that fit into the wall socket, I cannot find a telecom standard - hence thought some PCBers might be able to shine a
Electronics Forum | Fri Aug 31 22:50:34 EDT 2001 | davidbot
700 V). If you need more wax to patch up the rework area just to the grocery store and get some parafin that is used for canning. Its cheap and non toxic but it is combustable if there is there is sustaiing flame. Plus you can make candles out of wha
Electronics Forum | Sun May 23 02:38:24 EDT 1999 | Jeff Sanchez
Hey peoples, We are working with the dairy industry out here and they asked us to start reworking all there boards for them. Of course we said yes, hehe. Only we didn't know what them farmers coated them boards with. It turned out to be wax, hmmmm
Electronics Forum | Mon May 14 18:31:20 EDT 2001 | genny
The experiment was to determine insertions from a > gold plated board into a connector. Same > thickness boards (0.062"), with 100 m base > nickel. � 100m gold =_ 500 insertions � 50 m > gold =_ 300 insertions � 30 m gold =_ 50 to 75 > insertio
Electronics Forum | Wed May 30 10:27:52 EDT 2001 | genny
I couldn't find that standard free on the IPC website and was looking for a quicker answer (hang my head in shame...) Sometimes my company's a little frugal, and to get them to buy a standard can be like pulling hen's teeth... I will see what I can
Electronics Forum | Fri Aug 31 08:45:33 EDT 2001 | 0704494250
Hey peoples, We are working with the dairy > industry out here and they asked us to start > reworking all there boards for them. Of course we > said yes, hehe. Only we didn't know what them > farmers coated them boards with. It turned out to
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