Electronics Forum: expiry and pcb (Page 2 of 53)

Desiccants and pcb finish degradation?

Electronics Forum | Wed May 16 08:48:12 EDT 2001 | ohboy

I been a bunch o' places...! Some good, some bad, re-inventing the wheel in many cases. Our specs are pretty specific in a lot of cases, but that doesn't mean they always get followed. It usually becomes a case of "It's not quite right, but we rea

Desiccants and pcb finish degradation?

Electronics Forum | Tue May 15 21:57:06 EDT 2001 | davef

Welcome!!! Where the hay ya been??? Sorry bud, were lining-up with your fab [it hurts me to say that, but when yer  ] We used to dry pack with desiccants, also. Its probably an old MIL-STD-2073-1C requirement [er something like that]. We qui

Desiccants and pcb finish degradation?

Electronics Forum | Mon May 21 17:32:23 EDT 2001 | davef

I said: "Our electronic circuit board fabricators seal the boards in moisture barrier bags [MBB]. We discontinued the use of desiccant bags in these MBB because of concerns about the desiccant releasing materials that would affect the solderability

pcb laser markers

Electronics Forum | Mon Jul 19 19:22:09 EDT 2004 | g2garyg2

Laser Marking stations generally accept the product, clamp it in place, then through a motion platform move the product underneath the laser head. Marking is generally conducted with a CO2 laser ranging between 20 to 30 watts. You will loose 20% thro

multilayer and difficult and high quality pcb supplier

Electronics Forum | Fri Sep 06 03:06:18 EDT 2013 | 5pcb

We are a complex pcb supplier in China. We are good at making prototypes and multilayer (8-20)layers PCB. If you think your boards are difficult enough, you can contact me. Let's talk details. sales2@dmele.com Name:Lily Tel:0086-0755-23006293.

multilayer and difficult and high quality pcb supplier

Electronics Forum | Fri Sep 06 03:11:31 EDT 2013 | 5pcb

Welcome phone call from all over the world.

The minimal distance btw component and the edge of pcb

Electronics Forum | Sun Oct 09 11:16:06 EDT 2016 | mekmat

Hello, I would like to ask you about the minimal distance between components and border of pcb especially V-cut to avoid crack of component during depaneling? I need some standard (IPC or something) where is this defined? Thank you for your support

The minimal distance btw component and the edge of pcb

Electronics Forum | Sun Oct 30 12:39:13 EDT 2016 | mekmat544

Thank you for your answer, but I am litte bit confusing. There are parameters of V-scoring but with put values. How can I get values for V-scoring for pcb 1,6mm thickenss. Thank you. M.

help to id and purchase pcb transformer from LOWRANCE GPS

Electronics Forum | Sat Jun 25 15:20:03 EDT 2016 | skipper6567

I have a mini/micro transformer that is mounted on a pcb inside my lowrance gps/plotter. I have removed it from the pcb. It has 5 through hole pins, 3 pins out bottom one side and 2 pins out bottom on opposite side. The transformer has yellow tape ar

help to id and purchase pcb transformer from LOWRANCE GPS

Electronics Forum | Sun Jun 26 08:34:18 EDT 2016 | davef

My guess: http://www.gcitechnologies.com/


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