Electronics Forum | Thu Jan 22 09:24:14 EST 2009 | soudomphong
Hi, I am looking for a cheap Siemens safety contact relay for S-20 machine also call K2 relay. 3TK2804-OAC2. Anyone with info please contact me via email. I am also need to know the different between these two relays 3TK2804-0BB4 and the above metion
Electronics Forum | Mon Sep 08 08:59:45 EDT 2008 | davef
You're correct: * Sealed relays should not be cracked or have moisture intrusion. * Hand soldering relays is going to be expensive. [Using a mini-solder pot for this might reduce some of the burden.] The good part is that the problem is gross enough
Electronics Forum | Thu Dec 22 18:54:30 EST 2011 | dwoodbury
Hi. We are having constant error messages from a Fuji QP341/MTU9 tray unit. It says there is a safety relay failed to start in prescribed time. Nothing we do seems to fix it, but rebooting enough times and eventually it goes away. We changed relay bo
Electronics Forum | Fri Sep 05 13:33:28 EDT 2008 | jmiller
We are having problems with relay package seals cracking and moisture intrusion in power relays on thru-hole assemblies. we use a few different brands of thru-hole relays, we are using a sn-pb process right now and just going to lead-free. the contra
Electronics Forum | Thu Dec 06 15:09:14 EST 2001 | smtspecialist
Thanks for the info, Of course the first thing to do was to look with my supplier, but the problem was that it's a special relay, custom made from a design created 10 years ago. Two years ago that company went BK and we had to order a whole bunch t
Electronics Forum | Wed Dec 12 07:38:04 EST 2001 | smtspecialist
I have observed the same thing with solder composition in this case I am using 63/37 NC which is giving good results usualy. The liquid tin, product from MG Chemical that I used is to tinplates copper circuit on PC boards. I tried on few relays, it
Electronics Forum | Fri Dec 07 15:17:06 EST 2001 | davef
Dull / shiny, I�m not sure that�s a proper indicator. If �Liquid Tin� adds a thin coat of solderable material without converting the corrosion on the surface of the lead, the corrosion will [probably] continue to increase and potentially affecting t
Electronics Forum | Wed Dec 05 11:35:15 EST 2001 | smtspecialist
What is the best way/material to clean leads with 20% copper exposed that have been sitting in a stock room for a couple of years. My process uses NC flux 263 from AIM and I want to stay with the NO-Clean as much as possible!
Electronics Forum | Thu Dec 06 19:51:43 EST 2001 | davef
No. Assuming your talking the MG Chemicals product, MG Chemicals makes innovative products and is a very innovative company. Let us know how it works, please.
Electronics Forum | Tue Dec 11 16:09:02 EST 2001 | mparker
What is the composition of tin to lead in the "Liquid Tinner"? It's been my experience that the higher the tin, the duller the solder appears. I've used 63/37 and 70/30 that both look shiny, whereas 80/20 does look dull. Just another thought to cons
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