Electronics Forum: wicking (Page 1 of 33)

humiseal 1b73 wicking

Electronics Forum | Wed Feb 10 08:10:26 EST 2010 | davef

Here is a posting by P Kinner at Humiseal ... Typically, there are three main approaches to avoid coating wicking into press-fit connectors (and other keep out areas). Wicking is a phenomenon caused by a combination of low viscosity of conformal coa

humiseal 1b73 wicking

Electronics Forum | Fri Feb 05 20:39:41 EST 2010 | localperm79

I've recently been placed in control of operations of our SCS conformal coat sprayer and I must eliminate problems with wicking of humiseal 1b73 into surface mount connectors while also trying to minimize masking as much as possible. We use a 55:45

Solder wicking up on connector leads

Electronics Forum | Tue Sep 16 17:03:34 EDT 2014 | rangarajd

We have an issue with solder wicking up the leads/ inside terminations on an SMT connector. The solder coverage is sometimes over 50% of the connectors inside pin length. The terminations are gold plated. Is there an IPC spec for acceptability? Plea

Solder wicking up on connector leads

Electronics Forum | Sun Sep 21 10:03:15 EDT 2014 | gascon5383

hi, there is an IPC standard, IPC-A-610 - Acceptability of Electronic Assemblies. According to this manual, solder in the bends of a lead does not matter, but solder touching the body of a component is a defect. I cannot find a specific reference in

Samtec Searay 500 pin connector solder wicking issue after reflow

Electronics Forum | Mon Jan 13 17:39:49 EST 2020 | avillaro2020

Hi, I need help on how to address the solder wicking on the samtec searay connector after reflow resulting to open solder joints on thick and thermal heavy PCB (4.4mm and 6.3mm). I increased my solder paste thickness to 8 mils, the connector is manua

Samtec Searay 500 pin connector solder wicking issue after reflow

Electronics Forum | Tue Jan 14 10:48:07 EST 2020 | dontfeedphils

I've worked with these quite a bit in the past as well. As the previous poster mentioned, we ran either 4/5 mil thick stencil with a pretty standard RTS profile in a 10 zone convention oven without issue.

Samtec Searay 500 pin connector solder wicking issue after reflow

Electronics Forum | Tue Jan 14 11:53:44 EST 2020 | avillaro2020

Hi Phil, thanks. I am successful using the same connector on small thinner boards 2-2.5kg) i cant make it work, tried all kinds of profiles with vapour phase but to no avail. Yes you read it right 4.3-6.3mm pcb thickness and 2-2.5Kg. And it is 44 lay

Samtec Searay 500 pin connector solder wicking issue after reflow

Electronics Forum | Wed Jan 15 11:18:51 EST 2020 | avillaro2020

Hi Evtimov, Thanks again! The solder wicking/open solder joint is not actually gross rejection, it is only a few and appeared random (difficult to trend the location of the opens), what is perflexing is that i have this 1 or 2 open solder joints sur

Samtec Searay 500 pin connector solder wicking issue after reflow

Electronics Forum | Wed Jan 15 12:10:22 EST 2020 | emeto

Avillaro, I don't have hands on experience with Vapor Phase equipment, but my guess is that it will work better for thick boards like yours. Trying another chemistry is a logical move. May be it is worth trying the fixture for connector flatness as n

Samtec Searay 500 pin connector solder wicking issue after reflow

Electronics Forum | Tue Jan 14 10:41:49 EST 2020 | robl

Hi Arnel, I've used these before but with a 0.005" stencil. The key issue here was that the pins are actually a solder preform at the base that melts into the board - sort of BGA like, so too much paste can cause issues. Samtec have some great app

  1 2 3 4 5 6 7 8 9 10 Next

wicking searches for Companies, Equipment, Machines, Suppliers & Information