Ed, once upon the time I was relay and connector specialist. Don't know if
anything useful stayed in my mind. Let's see.
1. What kind of switch, single or multipole?
2. Max ratings?
3. What contact materials:Au, Ag, Ni, RH, Pd, Cu?
4. What's the geometry of the contacts: spheric, flat, single, multiple,
sliding?
5. What housing: open, plastic cover, sealed?
6. What's the pressure per sq?
7. Can you present a couple of photos to show whole part
8. How do you connect to the part?
9. Manufacturer?
10. UL, MIL, DIN or other qualification?
11. The photo you presented, what exactly is that?
I had once a troubleshooting table, but canīt find it.
Inge
On 6 June 2013 19:59, Ed Popielarski <[log in to unmask]> wrote:
> Greetings fellow 'netters,
>
> I have discovered a dewetting condition on high current blade connector(s)
> which causes me to raise an eyebrow. I can't find any scholarly articles
> discussing the long term effect such an irregular surface at the material
> contact interface (photo located at
> http://stevezeva.homestead.com/Terminal_de-wetting.JPG ) will have on
> connection integrity at high current. This is an extreme environment
> automotive application with MTBF expectations in excess of 10 years.
>
> Any guidance and/or professional opinions would be greatly appreciated.
>
> As always, thanks to Steve G. for sharing his webspace with us!
>
> Ed Popielarski
> Engineering Manager
>
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