Electronics Forum | Thu Nov 29 15:42:30 EST 2018 | emeto
Thanks Rob, in my case I will probably have it in the middle under the part and see if it really helps with the vibration. My other option is to use underfill and see how that works...just not sure how good it will flow under as the part is close to
Electronics Forum | Tue Nov 26 12:56:13 EST 2019 | rossrohrer1
Starting to get things to work. I tested the circuit without any load capacitors and had my first bit of success, thinking now that i possibly just have a lot more stray capacitance that i originally thought. probably going to use 2pf load caps.
Electronics Forum | Thu Feb 03 15:55:16 EST 2022 | davef
Look here: https://dynamite.com.tw/index.php?do=prod&id=34&lang=en
Electronics Forum | Fri Aug 11 00:53:33 EDT 2023 | thecolonel97
I actually just sent an email today to our paste provider ECO Solder/Senju to get their input as well.
Electronics Forum | Thu May 25 17:41:29 EDT 2000 | John Thorup
Hello Jason Sorry that I can't be of much help as your part seems to be proprietary to a specific OEM manufacturer. I would guess that it is a Temperature Compensated Crystal Oscillator by the TCXO and the shape. This is basically a precision cryst
Electronics Forum | Thu Oct 28 11:41:21 EDT 2004 | Steve Stach
Hello Loz, Blue residues on circuit boards can be caused by copper corrosion, component body deterioration, marking permanently, and adhesive break down. In this case, a more subtle mechanism appears to be possible. This is a no clean application
Electronics Forum | Wed May 11 06:22:33 EDT 2005 | rlackey
The above suggestions look to be the most likely, however on the off chance: Going back a decade we saw damage to crystals & resonators due to induced harmonics from ultrasonics (usually in the wash). Some fluxer systems use ultrasonics (I think
Electronics Forum | Thu Oct 28 11:50:11 EDT 2010 | phase1
We are having a little trouble with what appears to be a crystalization between our fine pitch parts. The problem appears after a a thourough wash of the pcb when dry. It looks like lead wiskers/haze between the joints.We are using water soluable lea
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 | Wed Aug 09 12:11:44 EDT 2023 | thecolonel97
We are currently experiencing an issue with one of our reflow ovens producing large amounts of flux crystals in the end of zone 12 and entrance of cooling zone. This has been going on for roughly around 4 years now, we are using Senju M705 lead free