Electronics Forum | Thu Oct 21 12:02:05 EDT 2010 | kjs123p
My company is trying to develop a system to take into account the SMT parts scrapped by the machine and also the parts lost during loading and unloading feeders. This is causing part shortages for us. I would appreciate if anyone could share how th
Electronics Forum | Thu Oct 21 12:44:07 EDT 2010 | swag
We issue extra parts like this: 8/2 caps and resis. - 40 over 8/4 caps and resis. - 20 over 8/4 IC's - 7 over 12mm - 7 over larger feeders + stick + matrix = the correct # req'd. These #'s were based on our first SMT lines (used equip.) and we made
Electronics Forum | Thu Oct 21 15:30:56 EDT 2010 | remullis
Search on Attrition, I think most companies start around 2% across the board. I have adjusted mine higher for 0603, and parts where I experience tape issues constantly. We are running parts with date codes back 2006,2008.
Electronics Forum | Thu Oct 21 15:35:38 EDT 2010 | davef
While you're waiting for others to reply, search the fine SMTnet Archives to find threads like: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=43910
Electronics Forum | Thu Mar 13 09:23:26 EST 2003 | jrloudenjr
What types of systems/procedures are normally used or followed to allow for scrap percentages typically from a 43,000cph placement machine.
Electronics Forum | Thu Mar 13 14:51:23 EST 2003 | juan_ruiz
A good standard could be 99.7% of Pick up reliability in terms of machine performance, but you should take care of the cost of the parts that you are scraping.
Electronics Forum | Sun Dec 07 20:51:23 EST 1997 | john martin
part of my job is to id and source electronic components. i have an ongoing problem iding smt devices w/mfr codes in place of actual part numbers does a cross ref guide exist that will enable me to id a smt transistor(eg)by the marking codes on the d
Electronics Forum | Tue Jan 13 10:53:05 EST 1998 | Tonya Warner
It is also my job to ID and cross components. I have found that the same number can be used by different manufacturers for different parts, same package style. There is not a standard marking system for SMT devices so watch out for this.
Electronics Forum | Wed Jun 25 13:16:44 EDT 2014 | sarason
Have you checked http://www.marsport.org.uk/smd/codeintro.htm sarason
Electronics Forum | Mon Sep 06 20:22:03 EDT 1999 | Devon Richards
Please excuse my ignorance, I am a brand new EET student. Can someone please tell me how to identify smt components on a pcb? ie: which is a resistor, capacitor etc, and what do those tiny numbers mean? My digital prof. did not know!!! Thanks in a
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