Electronics Forum | Thu Jan 20 15:02:00 EST 2000 | Russ
Many times the crystal supplier also has a package that already has epoxy bumps on them to allow th crystal to be raised off of the board. This is my preffered way since placing spacers on components can be time consuming and operators can and will
Electronics Forum | Wed Nov 20 12:10:29 EST 2019 | rossrohrer1
Trying to create my own RFID reader based off the MFRC522 demo board by copying the layout and components, then later i am planning to change the footprint. I am having trouble replicating their crystal. The mfrc522 datasheet calls for a 27.12 mhz
Electronics Forum | Mon May 09 15:21:28 EDT 2005 | tforbes
Hello, I am hoping that someone can shed some light on my somewhat strange question. The group that I recently started with have had a process in place where they do not run crystals through their wave solder process. From my previous work experien
Electronics Forum | Tue May 10 09:42:40 EDT 2005 | tforbes
We are using a water soluable process, and we have no fear of washing the boards after the crystals have been placed. Any type of SMT crystal I have reflowed with no fear, thats why this practice troubles me, and I want to remove it altogether. I w
Electronics Forum | Mon Nov 13 07:04:59 EST 2006 | saaitk
We are having intermittent faults with BGA's soldered onto an immersion gold finish board with snpb solder. One potential cause I have been informed is the formation of phosphorus crystals. As I am not an expert in this area I have no idea if this is
Electronics Forum | Tue Nov 26 12:20:39 EST 2019 | rossrohrer1
I ordered a capacitor book. I reinstalled the crystal that i purchased from digikey, and swapped the two load capacitors out from 30pf to 10PF which works out well with the datasheet that calls for 10pf Load Capacitance, and this equation (CL = (C1
Electronics Forum | Thu Jan 20 11:01:40 EST 2000 | Brian W.
Bivar's area code has changed to 949. They also have a website...www.bivar.com. I am using one of their water soluble spacers for a crystal, and it works great. They also have permanent ones. Brian
Electronics Forum | Tue Aug 06 17:17:51 EDT 2002 | melo_guy
If you are in need of crystal and oscillator information, send me an e-mail. I work for a manufacturer of crystals and oscillators. If you have any questions I would gladly refer them to the appropriate department. As for any components that you m
Electronics Forum | Tue Nov 14 02:53:05 EST 2006 | saaitk
Thanks for your input folks. I will have to get back to our customer regarding the analysis as it was them that carried it out. If I can get more details then I will post them. For my own benefit, is phosphorus crystal formation to be expected using
Electronics Forum | Tue Feb 02 09:02:23 EST 2010 | markhoch
Just a quick question. Is anybody currently Wave Soldering Crystals on the Bottomside of a PCB? I've always thought that this is taboo. Am I wrong?
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