AVR-Chat

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

 

From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of David VanHorn
Sent: Tuesday, March 18, 2008 11:24 AM
To: AVR-Chat@yahoogroups.com
Subject: Re: [AVR-Chat] Re: switch ratings

 

On Tue, Mar 18, 2008 at 2:07 PM, Zack Widup <w9sz@prairienet.org
<mailto:w9sz%40prairienet.org> > wrote:
>
> I believe Sander is right. I'd keep the same current rating for lower
> DC voltages as for 28 volts.

Right, current is just current, the voltage across a closed switch is
essentially zero.

 

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