39 ipc 2222 results

Electronics Forum: ipc 2222 (Page 2 of 4)

The minimal distance btw component and the edge of pcb

Electronics Forum | Sun Oct 09 16:57:30 EDT 2016 | davef

IPC 2222A Sectional Design Standard for Rigid Organic Printed Boards, 5.3 Design Requirements for Printed Board Assembly

minimal distance between THT solder padsfor selective soldering

Electronics Forum | Wed Apr 18 08:57:45 EDT 2018 | davef

Here is the IPC Standards Tree [ http://www.ipc.org/4.0_Knowledge/4.1_Standards/SpecTree.pdf ]. The design standards that you ask about are over on the right side. I'd guess that the following standards would be a good starting point: * IPC-2221, "

0402 opposing track balance

Electronics Forum | Fri Aug 08 12:52:57 EDT 2003 | davef

So, if you give your customers design guidelines and one their products causes a cataclysmic explosion, resulting in the deaths and disfigurement of many handicaped third-world children, could a lawyer consider you responsible? Spec Fir Tree General

Scored Panel Depth

Electronics Forum | Mon May 21 17:37:51 EDT 2001 | davef

IPC-2222, Sectional Design Standard For Printed Board For Organic Printed Boards talks to scoring parameters in para. 5.3.1. You can obtain the standard at: http:///www.ipc.org. and Document Center [http://www.document-center.com/home.cfm/sid=71285

PCB Through Hole Size for Lead Free

Electronics Forum | Wed Nov 07 20:01:35 EST 2007 | davef

Josh: Hole size to lead diameter ratio is meaningless. Minimum and maximum component lead to finished hole size clearance do not vary according to component lead diameter or hole size. Regardless, here's what you want to smack those goofballs over i

PCB Thickness and Score Depth Standards?

Electronics Forum | Tue May 28 18:57:40 EDT 2024 | lambert

The scoring or grooving creation is found in IPC-2222 and describes the standard scoring parameters, with an illustration of the critical parameters. There are many articles on the web describing the process. Many of the articles promote a groove dep

Double sided design

Electronics Forum | Thu Aug 25 10:32:03 EDT 2005 | davef

IPC-2221A, Generic Standard on Printed Board Design, the base document that covers all generic requirements for printed board design, regardless of materials. From there, the designer can choose the appropriate sectional standard for a specific techn

Scoring

Electronics Forum | Sat Dec 01 09:12:27 EST 2001 | davef

Ah, there�s the rub. So often we see scoring requirements defined based on depth of cut. This ignores that the depth changes with a variety of factors, including: * Wear on the cutting blade. * Variation in thickness of the fabricated board. So, c

DFM for Wave

Electronics Forum | Mon Jul 10 20:59:14 EDT 2006 | davef

Dave Try: * IPC-2221 - Generic Standard On Printed Board Design * IPC-2222 - Sectional Design Standard For Printed Board For Organic Printed Boards Our old [euphemistically] friend Earl Moon has written extensively on DFM. Look at his site: http://

PCB Through Hole Size for Lead Free

Electronics Forum | Fri Nov 09 07:40:07 EST 2007 | jdumont

Thanks for all the great suggestions guys. We do not have topside heating but topside temps are where they should be before hitting the wave. No excessive copper in the area either. We are going to start with the most problematic board and use it as