Electronics Forum | Mon Jun 20 09:12:55 EDT 2005 | davef
There's no easy answer. It depends on: * Thickness and size of the PCB in the array. * Means of separation. * Type of component. SMT components are more sensitive to the forces that need to be applied to separate the PCB. * Type SMT device. Ceram
Electronics Forum | Mon Jun 20 04:21:04 EDT 2005 | alex
What is the ideal component edge to board scored edge clearance?
Electronics Forum | Thu Apr 25 05:17:08 EDT 2019 | pdrirrework
Hello All, Using IR will mean that there is no minimum distance to the adjacent components as there is not hot air flow. If components are heat sensitive around the BGA you can also tape them off with a reflective tape. The IR heat will bounce strai
Electronics Forum | Fri Apr 26 05:50:54 EDT 2019 | ppcbs
We just apply tacky flux to the surrounding components and to the bottom side components under the BGA. This will prevent cold solder if any solder joints reach reflow temperature the surface tension will keep them aligned and in place. If you nee
Electronics Forum | Tue Apr 23 14:30:35 EDT 2019 | scotceltic
I would like to setup a guideline for BGA to components around it minimum distance. To allow for rework possibilities of the BGA. What are people using as a minimum clearance out there ?
Electronics Forum | Thu Apr 25 17:17:44 EDT 2019 | spitkis2
Years ago it was common to see 2-3mm keep out areas around BGAs. Now with boards being so densely populated there are no clearance minimums. Regardless if the machine is using convection or IR heating, parts can be reworked without affecting adjace
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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