Sorry that was 50 mil pitch....merry Christmas. ..8-)

John Burke <[log in to unmask]> wrote:

>Seen this tried before 5 years ago on internet switches cad risk is huge if you are running the 48 volt distributed power through that connector. In the testing I did on through hole at 25 mil pitch all failed through caf at humidity..temp..time 85 85 1000 hours.
>
>Charming Chan <[log in to unmask]> wrote:
>
>>Hello All, 
>>
>>Our connector supplier gave us a presentation and proposed us to use their SAS connector, which is 31mil pitch design with 16mil press fit hole. The drill bit is supposed to use 20mil, then the drilled hole wall to drilled hole wall spacing is only 11mil. I'm quite concerned on the CAF risk and the pcb fabrication quality(plating wicking, glass fiber cracking, etc.) on our 4.0mm thick backplane.
>>
>>This SAS connector is supposed to be used on high reliability storage server, so I'm looking for your advice on this. Thank you all.
>>
>>
>>Best Regards
>>Charming Chan
>>
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