Electronics Forum | Mon May 09 18:05:50 EDT 2016 | davef
Your crystal should meet the requirements of IPC J-STD-002D Solderability Tests for Component Leads, Terminations, Lugs, Terminals
Electronics Forum | Mon May 09 15:05:01 EDT 2016 | wooly1
We are trying to reflow some Fox brand crystals to some boards but the solder will not wick up on the ends of the component. It solders fine to the under side but not to the ends. I have tried numerous things with the reflow profile but nothing seems
Electronics Forum | Tue Jul 30 15:04:54 EDT 2013 | ericrr
Is it just possible that H49s crysats are hard to place, so it looks like it has been place by a perfectionistic instead of looked like it had a parachute type loading. This is the H49 short stubby type crystal about 10 mm long (width) about 4.5 mm
Electronics Forum | Tue May 10 08:23:07 EDT 2005 | davef
We wave [primary side] and reflow crystals for oscillators without fear. We hand solder liquid crystal displays. Consider checking with the crystal fabricator and using their guidelines.
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 Jul 19 03:06:42 EDT 2016 | ishwarsingh1
Upside down placement of a crystal oscillator is acceptable or not ?? As per IPC 8.3.2.9.2 Rectangular or Square End Chip Components – 1, 3 or 5 Side Terminations.I am not sure whether is applicable for crystal oscillator or not . Your answer wo
