Re: CDC Interconnect Concepts

["Fernando J. Barbosa" <barbosa@jlab.org>]

Hi Gerard,

I agree - it should be OK. MIL specs are usually very conservative for 
our application environment. I will take a better look at the specs later.

Regards,
Fernando



Gerard Visser wrote:
> Hi Fernando,
>     A small correction is needed. I think the EDAC datasheet is a bit 
> unclear. I tracked down the controlling document, which is 
> MIL-DTL-21097. It is clear from that that 1800 VAC (2545 VDC) is 
> simply the hipot test voltage. It is therefore not to be interpreted 
> as a UL operating voltage rating or anything like that. Still, this is 
> a pretty high value for a relatively low cost, pcb-mating, connector, 
> I doubt it is realistic to go higher.
>     What the actual maximum hipot test voltage is, and how much to 
> derate from there to a maximum operating voltage, I guess is still an 
> open question.
>
>     - Gerard
>
> p.s. Still, I think we should not forget the available current and the 
> stored energy at these connector contacts is very very low. It should 
> not be difficult to certify that the design is safe. It could require 
> that at least some of the resistors used are rated to withstand the 
> full voltage, but this may be a worthy idea in its own right...
>
>
> Gerard Visser wrote:
>> Hi Yves, Fernando,
> ...>
>> But, on the other hand, what part number are you looking at
>> specifically, Yves. I just now checked EDAC website, for instance this
>> connector looks fairly suitable:
>> http://www.edac.net/downloads/306-316-356%20Series%20Spec%20Sheet.pdf
>> It has a rating of 2545 VDC between adjacent contacts! It comes with
>> card guides as an option. Looks good to me.
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