Electronics Forum: smt reverse polarity parts (Page 1 of 5)

zener diode polarity

Electronics Forum | Sun Apr 25 08:06:47 EDT 2021 | pradeep14

Presently we are facing wrong loading of zener diode components in SMT Line. * In the particular product, we have two different part numbers of zener diode but the package and color code is same.Only the voltage is different is there in between two p

Smt parts in strips

Electronics Forum | Wed May 09 09:54:01 EDT 2012 | swag

We build all our stuff in "kits" as you describe. We don't have much trouble running short on parts at the end although most of our equip. is new which helps a lot. We also have feeders that can run in reverse on set-up stations and we reload parts

Defect in diode(Reverse Polarity)

Electronics Forum | Fri Apr 07 11:47:58 EDT 2023 | abhishek10

part can be reversed internally in spool or may be possibilty of part drop

Defect in diode(Reverse Polarity)

Electronics Forum | Thu May 04 04:24:09 EDT 2023 | abhishek10

problem occured only in one part rest all parts are ok

Defect in diode(Reverse Polarity)

Electronics Forum | Wed Aug 02 04:17:21 EDT 2023 | ttheis

Possibly operator reloading rejected parts into tape/feeder in wrong orientation.

Defect in diode(Reverse Polarity)

Electronics Forum | Fri Apr 07 11:17:54 EDT 2023 | proceng1

Do you mean that your machine is placing the part backwards? Or the part is reversed internally? Like the Cathode mark is painted wrong?

Defect in diode(Reverse Polarity)

Electronics Forum | Wed Aug 02 03:07:43 EDT 2023 | cbeneat

We use NPM and CM machines. What we've seen is the part will stick to the top tape on occasion and get flipped, either upside down, or reverse. Adjust the tape/cover so the top tape is pulled while the part is still under the cover. This is usually t

Defect in diode(Reverse Polarity)

Electronics Forum | Fri Apr 21 13:28:10 EDT 2023 | emeto

There could be several reasons - wrong part setup, wrong program, wrong machine placement. Solution will be to measure part before placement.

Defect in diode(Reverse Polarity)

Electronics Forum | Mon Apr 10 04:22:41 EDT 2023 | dilogic

what is the size of that diode? We had some issues where part was sucked out of tape before nozzle actually touched it and flipped in the air.

SMT Component Polarity Guide

Electronics Forum | Wed Jul 24 16:12:39 EDT 2013 | tbouslog

I am looking for a poster (or anything) that shows Polarity Markings for different SMT Components. I would like something for SMT Operators and SMT Setup to be able to look at when training or when they are questioning the polarity of a part. If anyb

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