Electronics Forum | Thu Sep 12 20:55:39 EDT 2013 | marcelorotofrance
My own unit has an internal transformer also. It has multiple secondaries, and a divided primary which can be configured to the required voltage by changing jumpers. Best regards.
Electronics Forum | Sun Aug 07 19:43:55 EDT 2005 | Tom B
I usually Spec out 20- 30 uinches of gold over Nickel (50-80 uinches). If the most conduction is needed use Immersion Silver, about 12-20 uinches). Tom
Electronics Forum | Mon Mar 31 11:10:43 EST 2003 | davef
First, most �thermal shock� recipes are not a reliability test. There is no relationship between the failures seem in these tests and in-use application. These tests show you the failures in these tests. That�s it!!! Second, accelerated life test
Electronics Forum | Sun Jul 12 21:07:07 EDT 2009 | padawanlinuxero
I have a problem we change a product from leaded to lead free, I was not involve in the selection of the new reed switch, but now we are having problems with the hermeticity in the switch,this occurs after is overmould and put to a 6 cycles in the th
Electronics Forum | Fri Jun 08 19:03:09 EDT 2007 | flkpm
Hi all. First off thanks in advance for any help or suggestions you may give. What I need help with is making a 4x4 keypad overlay work again. I have the overlay and the PCB, all I need now is a device that connects to the PCB that senses the push of
Electronics Forum | Fri Jun 08 19:04:32 EDT 2007 | flkpm
Hi all. First off thanks in advance for any help or suggestions you may give. What I need help with is making a 4x4 keypad overlay work again. I have the overlay and the PCB, all I need now is a device that connects to the PCB that senses the push of
Electronics Forum | Fri Apr 26 09:32:22 EDT 2002 | blnorman
We conformally coat over NC solder paste. No problems. We're using a platinum catalyzed addition cure silicone. The only concern with this conformal coating is cure inhibition. You must test the coating over the residues to be sure there is no in
Electronics Forum | Fri Jun 07 11:08:34 EDT 2019 | gregoryyork
OK good if you get really close to the two small solder balls trapped in that greasy waxy residue and carefully turn the balls over you should see that they are flat on the side stuck to the solder resist.
Electronics Forum | Fri Jun 07 12:34:30 EDT 2019 | teejsd
C3 just uses heated DI water that it applies, then pulls back into a disposable cartridge. Machine then applies a 10V charge to the sample & measures leakage current(nA,I think) over time(sec). If the leakage current is high enough/fast enough, you
Electronics Forum | Fri Jun 07 12:44:55 EDT 2019 | gregoryyork
These residues are extremely water miscible BUT you will probably need the extraction of heated IPA/Water to get the porous resist to release the residue quicker than it would do releasing it naturally in the field. Why dont you try to soak the circu
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