AC Adapter tolerance

[bill.n1vux-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org (Bill Ricker)]

On Sat, Feb 7, 2009 at 11:23 AM, David Kramer <david-8uUts6sDVDvs2Lz0fTdYFQ at public.gmane.org> wrote:
> Chris Robichaud wrote:
>> I have a Motorola WR850G wireless router that I cannot find the AC adapter
>> for. The back lists the input power as 12 V DC, 0.5 A. I only have a basic

>
> The volts must be right, but 12VDC is very common,

and tip polarity too,

> .  The amps rating of the adapter must be equal to or greater,
> since that is how many amps the adapter is capable of supplying.

if the device is high quality, adapter  Amps rating  much greater than
device requirement is ok. But if they've shaved design pennies, the
device may rely upon the supply to limit draw, and thus draw too much
if given a over-spec supply. So don't over-buy by much in the Amps
either unless the device is fused.



-- 
Bill
n1vux-WYrOkVUspZo at public.gmane.org bill.n1vux-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org