Electronics Forum | Mon Apr 29 12:35:13 EDT 2024 | radek
Fuse was ok but the resistor which feed optocoupler was burned out. After replacing resistor everything is working fine. Now I've got error: "Infeed disbaled" - but this is configuration error ? BTW I have one more question - can I use this machine
Electronics Forum | Wed Aug 18 09:20:22 EDT 2004 | QE
Davef, Sorry for the late response. I was trying to gather more info. The group with low ionic contamination levels came from one of our other facilities. We want to outsource more of our product due to increasing demand. Both groups use the same
Electronics Forum | Sat Sep 04 06:25:07 EDT 2004 | GS
Many Thanks Dave for your patience (GBY). I was just trying to give a chance to our connector Supllier to read few micrograms less of NaCl found with the connectors. But even if using a "bonus formula" they are out of specs. Following it could be i
Electronics Forum | Sat Mar 20 06:18:58 EST 2004 | agp
I haven't heard of anybody yet who have done smt and reflow after thruhole and solder wave. Thru hole components usually have low resistence to heat and could easily burn when subjected to the 210deg-245deg.C reflow temperature. For pc boards with co
Electronics Forum | Sat Jul 08 12:33:07 EDT 2017 | dleeper
As others have mentioned, using your P&P machine is as accurate as any other solution and has the advantage of using equipment you already have. Most, if not all, P&P machines should have some sort of teach mode where you center the camera over the f
Electronics Forum | Tue Nov 07 12:07:10 EST 2023 | tommy_magyar
We are mounting an microphone device (SMT package) onto a PCB - how? Surface mount line or hand soldering? Contamination can only come from the solder paste, solder wire, flux, or burning the component/PCB assembly during hand soldering. Unless the
Electronics Forum | Wed Feb 02 20:53:34 EST 2000 | Dave F
Dennis: Several points: 1 If you're talking AlphaLevel process (?): � Good solderability, as HASL, even no-cleans bite well. � Planarity, uniform deposit, no bridgin� of FP. � Doesn't store as well as NiAu ... LT 6 months sealed � Very sensitive t
Electronics Forum | Tue May 26 11:13:49 EDT 2009 | xinxi
Is the components on the top or on the bottom of the pcb? Have you checked whether the temperature on pcb are too high when it pass through SW that it exceeds the limit that the components can take? Do check with the component manufacture for the te
Electronics Forum | Mon Sep 05 01:38:12 EDT 2005 | plcc
I hv a PCB (mtrl is RF35). After going thru' reflow, we found yellowish stain on the solder pad (solder mask). It looks like burn-marks. The reflow temp use is 245oC. We tried running bare pcb under 220oC, there's minimum stain found (acceptable),how
Electronics Forum | Thu Sep 23 09:28:49 EDT 1999 | Earl Moon
| | Hiya, | | | | Could anyone please suggest recommended manufacturers of | | IR rework stations for the removal of various SMT comps. | | | | Cheers | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was meltin
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