AVR-Chat

Steven Hodge Wrote
>Thanks for all your input.  Got it.   I'll use the 28 VDC rating for 12 v.
>I need to make/break 3.5A so I'll have to switch (pun intended) to a switch
>rated at 4 A at 28 VDC instead of the 3 A one I was hoping to use (for
>aesthetic compatibility with adjacent switches).  Steve

There are two components to switch rating.  Make/break which is limited by
arcing concerns.  And carry which is limited by the switches conductivity
and ability to dissipate power.  It is not uncommon for a switches rating
to be limited by the make/break in which it may well be able to carry
higher currents at lower voltages.  If the manufacturer doesn't specify it
I wouldn't depend on it in production though, at least not w/o some
extensive testing.

Robert


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