Electronics Forum | Mon May 10 18:05:31 EDT 2004 | daman
We are trying to solder a Surface mount relay having lead free finish on the leads. The leads are not getting soldered down during the reflow. The leads also look oxidized (failed our solderability test) but we don't have an option but to use these r
Electronics Forum | Mon May 10 20:46:25 EDT 2004 | davef
The three basic methods you can use to restore solderability on components are: * Highly active fluxes in a retinning operation. * Surface stripping chemistry and then a standard retinning operation. * Electrochemical conversion chemistry and then a
Electronics Forum | Tue Oct 05 18:05:56 EDT 2010 | jry74
I have seen an increase in components with contaminated leads, mostly SMT parts. They give us solder wetting problems and insufficient solder joints. Our practice is to not use them and return them to the manufacturer. Are these parts solderable?
Electronics Forum | Tue Oct 05 18:06:21 EDT 2010 | jry74
I have seen an increase in components with contaminated leads, mostly SMT parts. They give us solder wetting problems and insufficient solder joints. Our practice is to not use them and return them to the manufacturer. Are these parts solderable?
Electronics Forum | Tue Oct 05 18:06:53 EDT 2010 | jry74
I have seen an increase in components with contaminated leads, mostly SMT parts. They give us solder wetting problems and insufficient solder joints. Our practice is to not use them and return them to the manufacturer. Are these parts solderable?
Electronics Forum | Tue Oct 12 13:07:49 EDT 2010 | markgray
Baking of the component helps it depends on the type of contamination and how much contamination. It sounds like your purchasing is buying from brokers.
Electronics Forum | Mon Feb 26 09:35:48 EST 2001 | larryk
With allocation of components becoming a bigger and bigger problem, our company has had to purchase components from brokers. Because of this, I've found an increase of component contamination. What I mean is I have found problems with oxidation of th
Electronics Forum | Tue Feb 27 08:51:10 EST 2001 | larryk
Dave, We use water soluble flux. We currently do not do a solderability test on incoming components, I'm thinking that this is going to be a "must do" with these components. Larry
Electronics Forum | Mon Feb 26 19:59:20 EST 2001 | davef
We feel that we get more than our share of crusty components, but we just smile because we�re so happy ["Happy, happy" as Emeril says] that we use a nice and hot, aqueous flux. What kind of flux do you use?
Electronics Forum | Sat Mar 03 23:24:55 EST 2001 | CAL
We test Parts and Components to IPC J-std-002/003. We also use a wetting Balance tester to determine solderability. We also test with SERA. We use ROSA to electrochemically revert the components back to their original state. Need more info ... email
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