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 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 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 | Mon Jun 03 12:51:17 EDT 2002 | V.RAMANAND KINI
We are doing COB operations for nearly ten years. Pls. write to me if you need info on m/c selection, type of PCB, plating etc., Thanks V.RAMANAND KINI...03.06.02
Electronics Forum | Wed May 09 11:13:58 EDT 2001 | davef
Hold it!!! Call Bob over at Tri-Metal Fabricators and ask him to make you one for about 10% of the price a fine OEM would charge. Might not a a fancy anodized finish, but at the end of the day, it'll hold yer trays just fine.
Electronics Forum | Sun May 13 21:02:34 EDT 2001 | djarvis
Gary, You're not trying to clean these boards with Iso or other solvents after using no-clean solder paste? That'll do it.
Electronics Forum | Tue May 15 21:59:04 EDT 2001 | davef
Screws are scary. I'll bet they don't need to be. On the other hand, lookit ... http://www.fastenersforelectronics.com/electronics/drivetorque.html So, you're gunna get all those customers to buy-off on your torquing scheme? Ummm.
Electronics Forum | Wed May 16 12:08:24 EDT 2001 | raton
Some thoughts- Torque applied to each joint is case specific. I know there are charts and all, but they don't account for YOUR situation such as screwing a fab to a chassis(or your aluminum screw). If the customer sets a spec then use it. (But i
Electronics Forum | Tue May 15 21:57:06 EDT 2001 | davef
Welcome!!! Where the hay ya been??? Sorry bud, were lining-up with your fab [it hurts me to say that, but when yer ] We used to dry pack with desiccants, also. Its probably an old MIL-STD-2073-1C requirement [er something like that]. We qui
Electronics Forum | Tue May 15 22:56:38 EDT 2001 | davef
You should start by determining the manuafcturer of their equipment. I knew at one time, but it's probably no longer the same company.
