On Tue, Feb 11, 2003 at 07:59:27AM -0800, Robert Ritchey enlightened us thusly
> Hi,
> I have a question about protecting a circuit from an overvoltage 
> condition.  We
> have a new device that we are planning to use a regulated 5V wall-wart type
> device for power.  They have also requested overvoltage protection in case
> someone plugs in a 6V or 8V unregulated supply by accident.  My expertise
> is mostly digital so I am not sure what the best and cheapest way to do this
> would be.  Thanks in advance for any help or pointers.
> 
> -------------------------------------------------------------------- 


I would specify a 6.8V Tranzorb. They don't leak hugely at 5V, and take
dog's abuse. They also clamp spikes. 

-- 

        With best Regards,


        Declan Moriarty.
-- 
Author: Declan. Moriarty
  INET: [EMAIL PROTECTED]

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