Electronics Forum | Fri Dec 13 12:29:01 EST 2019 | davef
I'm not conversant in the topic, but I know suppliers to the government are concerned as you are. I have attended sessions on the topic at technical conferences. The topic that you want to search for is long-term storage protocols for electronic comp
Electronics Forum | Tue Dec 17 05:58:36 EST 2019 | robl
We had a customer who used XRF to determine the thickness of the "tinned" layer of components - sort of what is briefly mentioned in Bob Klenke's SMTA paper - http://www.circuitinsight.com/pdf/Solderability_Testing_Protocols_Component_Re-Tinning_Me
Electronics Forum | Thu Dec 12 09:46:34 EST 2019 | pavel_murtishev
Hello, Could you please tell me how you define a defect to be a mass one? What is a criterion? Numbers? How to distinguish between a set of simple defects and a mass defect? What metrics you use? Any input would be appreciated. Thank you in advanc
Electronics Forum | Wed Dec 18 09:45:09 EST 2019 | kylehunter
I'm not sure if I follow? Was there sarcasm? We are in Florida. We currently use a purex filtration unit. The issue is that it pumps out so much hot air that it heats up our space too much. Everyone I've talked to vents outdoors who live down here,
Electronics Forum | Fri Dec 27 11:47:07 EST 2019 | slthomas
"We would need like a 8" diameter duct for 300cfm, which for exhaust purposes, is dead wrong" If you have 2 4" exhaust ports on your oven (some do, some don't), an 8" or larger main trunk might be justifiable, especially if you have another machine
Electronics Forum | Mon Jan 06 12:13:55 EST 2020 | emeto
Kyleh04, I worked for one place that used the vent inside the building. You end up with a lot of heat, smell and increased number if defects(because of the heat in the building). Based on the debit of your machines you can can combine them and use a
Electronics Forum | Wed Dec 18 16:21:54 EST 2019 | jrow
Hello! We are having field failures due to cracking of the solder on our SMD micro switch components. I have been reading the IPC standards, and the only thing that it states regarding the solder profile/amount for Gull Wing component is "wetted fill
Electronics Forum | Fri Dec 20 17:09:52 EST 2019 | slthomas
I agree, that is not a gullwing lead in the normal sense but that doesn't address the failure. The wetting looks fine unless there is a problem under the lead, which is hard to tell since there is an obvious fracture. That appears to be the edge o
Electronics Forum | Thu Dec 19 10:53:15 EST 2019 | kithnelso
Can any one tell me what I would need to replace this yellow disc. I have another board that this part has burned up, and I need to find a replacement. The manufacturer is Buss, however I cannot find any information with the numbers printed on it. Th
Electronics Forum | Fri Dec 20 02:27:27 EST 2019 | spoiltforchoice
Well yes except it's marked M1 on the PCB, suggesting it's exactly what it looks like, a metal oxide varistor or 'MOV' specifically one rated to 130VAC making the board itself an AC product that takes 110V input. To replace, find any 130v varistor o
