Electronics Forum | Mon Jun 18 01:23:07 EDT 2001 | gregH
I have a 10-pin single in line connector that is reflowable. Pin size is 1.0mm and my pcb drill size diameter for the pin is 1.5mm. is it okay for pin in hole process ? I have only 2 pcs of pth components and they are the 2 10 SIL connectors. What's
Electronics Forum | Mon Sep 09 10:50:24 EDT 2002 | bmulcahy
Hi MK, It not really as simple as changing from one to the other. VIA hole, PTH hole sizes may need to be changed. Really the designer should re-evalaute the board before changing. Also remember your soldering profiles, both reflow and wave (if appl
Electronics Forum | Fri Jul 13 12:27:30 EDT 2007 | jseagle
As in more dwell? We see the same problem with through holes connected to power or ground planes. The solder reaches the plane and stops. We are having our boards re-designed to increase the thermal relief and expand the hole size. We are also tr
Electronics Forum | Thu Nov 08 13:15:30 EST 2007 | russ
60% ratio would be great start. that is what we typically shoot for with all leaded for the most part. 25 mil diameter in a 40 mil hole, works great for auto insertion as well Russ
Electronics Forum | Thu Nov 08 10:05:04 EST 2007 | pjc
I have not seen hold size as an issue when switching Sn/Pb to Pb Free wave soldering. Trying increasing your dwell time in the wave- typical for Sn/Pb is 2 to 3 seconds. Try 5 seconds to see what you get.
Electronics Forum | Fri Oct 27 08:24:41 EDT 2023 | avaqsemi
When designing a PCB to accommodate an intrusive reflow narrow profile connector (electrode rectangular) with specific dimensions, you'll need to consider the pad size, hole size, and other factors to ensure proper solderability and mechanical stabil
Electronics Forum | Sun May 28 08:24:50 EDT 2006 | Sjm
I read about 10:1 , 6:1 aspect ratio but I don't understand how it works. Can someone explain how you figure out the aspect ratio on a design with a board thickness of .093 and via hole size of .010 I don't know how to get the 6:1 number Is it the b
Electronics Forum | Mon Sep 09 21:02:30 EDT 2002 | davef
Bernard Interesting point. Please help us better understand: * Why do 'VIA hole, PTH hole sizes may need to be changed', aside from the obvious with hole-to-lead clearance? * What should the designer 're-evalaute the board before changing'? * What
Electronics Forum | Mon Jun 18 21:18:44 EDT 2001 | davef
Sounds good to me. Check the references on "Pin & Paste on Thick PCBs" June 15, 2001 09:13 AM
Electronics Forum | Sun May 08 07:09:04 EDT 2005 | Rick Iodice
We are continuing to struggle with voids under BGA's. Our problem are not consistent. some CCA's are perfect but others have pin hole sized voids. Does anyone have any feedback on Indium 92j and how it performs for bga's?
