Poul-Henning Kamp wrote:
> In message <[EMAIL PROTECTED]>, Bruce Griffiths writes:
>   
>> Hal Murray wrote:
>>     
>
>   
>>> What's the wear-out mechanism for peltier coolers?
>>>   
>>>       
>> One wear out mechanism is mechanical fatigue due to thermal cycling.
>>     
>
> And, if you run them at too high current, material migration.
>
>   
Yet another wearout mechanism is excited when the Peltier device ripple
current is too high.

Bruce


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