Electronics Forum: panasert and part (Page 1 of 71)

OSP PCB Shelf life and part packs

Electronics Forum | Thu Sep 27 09:53:46 EDT 2012 | testbloke

Anyone ?

OSP PCB Shelf life and part packs

Electronics Forum | Thu Sep 27 16:40:12 EDT 2012 | davef

Ideally, shelf life should be twelve months from application, but not all OSP's are the same so check manufacturer's instructions

OSP PCB Shelf life and part packs

Electronics Forum | Wed Sep 26 10:05:41 EDT 2012 | testbloke

Although we do not have any soldering issues with our OSP PCB's, I am trying to establish clear rules with regards pcb storage and shelf life. Our PCB's are supplied in metalised moisture barrier bags but without desicant, our current rules as follow

Mydata centering jaws causing ESD and part damage

Electronics Forum | Fri Nov 07 18:14:17 EST 2014 | cot628

That is a lot of Mydata lines to place billions of parts.

SOT-223 Flux trapped under part and lifting off pads

Electronics Forum | Thu Sep 30 11:30:46 EDT 2010 | babe7362000

Take a few parts from the reel and look close at > the parts to make sure the bottom surface of the > leads is below the bottom surface of the body. Yes I did that and they are below the body. I found the problem I think. The solder mask is abo

CP6 and CP65: What's the largest part they can place?

Electronics Forum | Thu May 03 15:07:59 EDT 2012 | rodrigo

Hi all, What the largest part I can place with these machines? I'm going to try to install a PLCC68 using the front light because the part is bigger than the backdisk and I want to make sure it can handle it. The part is about 30mmx30mm. Thanks

SOT-223 Flux trapped under part and lifting off pads

Electronics Forum | Wed Sep 29 09:29:47 EDT 2010 | swag

Take a few parts from the reel and look close at the parts to make sure the bottom surface of the leads is below the bottom surface of the body.

SOT-223 Flux trapped under part and lifting off pads

Electronics Forum | Wed Sep 29 08:26:03 EDT 2010 | babe7362000

We are Currently running a Board and it seems that the SOT-223's on the bottom side have flux and water trapped under the part. Nothing has changed in our process and this is the only board that it is happening on. We are using Kester R562 water wa

cap size and copper thickness vs part size questions

Electronics Forum | Mon Nov 07 16:34:55 EST 2005 | CW

If I am putting chip capacitors on a .063 FR4 board, what size package should we stay away from to avoid cracking? If I use 2 mil copper on the outside layers of a PCB, am I limited to what pitch of parts I can use? Specifically, will using 0603

cap size and copper thickness vs part size questions

Electronics Forum | Mon Nov 07 11:26:23 EST 2005 | CW

How large of chip capacitor can we use reliably? I��ve heard they tend to crack. I��ve also heard if you pre heat the larger chip caps (1812 and above) before vapor phase reflow, they won��t crack. If I use 2 mil copper for a power supply board, a

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