Electronics Forum | Thu Mar 31 13:48:19 EST 2005 | shannond
Hi All, I have to solder a device with platinum clad nickel leads to a PCB. I am having a hard time getting solder to flow on to the leads. Are there special proceedures that I need to follow because of the platinum or am I just dealing with contamin
Electronics Forum | Fri Apr 01 18:41:09 EST 2005 | KEN
Agreed. In my experience you will not wet solder to: Platinum Iron Constantine Tungsten Carbide titanium Chromalloy allomega alloy 303, 304 ...and the list goes on and on. You will either need to weld or braze. These are high temperature prcesses
Electronics Forum | Thu Mar 31 19:52:50 EST 2005 | davef
We agree with Russ that you're talking palladium instead of platinum. Your wetting problem likely is not the Pd-Ag surface layers, but the underlying metal or nickel to which you need to wet. Either a base metal is: * Contaminated and poorly wettabl
Electronics Forum | Fri Apr 01 11:18:42 EST 2005 | russ
Platinum indeed! I would suggest that you contact your solder/flux supplier and see what they have to say. I am sorry but I have never had to deal with this finish before. Please post your findings if any. Good Luck Russ
Electronics Forum | Fri Apr 01 15:43:26 EST 2005 | davef
Shannon: These detectors are aimed at applications that get bitchin' hot, like 600*C. We doubt there was a plan [by Omega] to have you use some sappy little 220*C solder to attach these leads. Check with your supplier, but we're wondering if you ca
Electronics Forum | Fri Apr 01 10:35:09 EST 2005 | shannond
Definitely platinum http://www.omega.com/Temperature/pdf/1PT100FR_RTD_ELEMENTS.pdf
Electronics Forum | Thu Mar 31 17:27:36 EST 2005 | russ
Are we possibly talking palladium instead of platinum? I haven't yet heard of platinum terminations (seems expensive) If it is palladium over nickel, I can tell you that you need to reach 225-230 Deg. C in reflow and the TAL should be about 90 sec.
Electronics Forum | Sun Apr 27 18:38:55 EDT 2003 | Yngwie
One of my customer asking me about my capability on soldering nickel strip onto the PCB pad. Given the size of the pad of 80 mil X 80 mil, and he want to ensure that we can pass 4.5kg peel force(solder wire Sn63/Pb37). Anybody with this experience ?
Electronics Forum | Mon Apr 28 09:59:04 EDT 2003 | davef
Your customer's question is reasonable. Soldering to nickel is not always a walk on the beach [can of corn, or whatever]. This issue is flux not solder. Your Sn63 will have plenty of strength, providing the solder connection is well formed. You s
Electronics Forum | Wed Nov 30 06:23:32 EST 2005 | wmeyers
Thanks Dave! Bill
