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Cooling chip ?






Nexgen

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You can get those on eBay for 3usd and it’s called TEC it is used mostly in DPSS lasers, where temperature is key factor of the process.
 

diachi

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I saw a product Peltier Thermoelectric Cooling Chip 91 watt Peltier Cooling Chip : United Nuclear , Scientific Equipment & Supplies that cools on one side and heats on the other. Can this be incorporated into a laser to increase run time?


Yes. Although, a heatsink with forced air cooling would be required to keep the hot side cool.

A heatsink with forced air cooling alone may be enough depending on your application.

TECs are good if you need to control the temperature precisely.
 
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I have a few of these same TECs in my stock from a purchase about five years ago. I believe I got them all for under $3.00 each. I also have some much smaller ones. I think I paid more for an 15 mm^2 than the 40 mm^2 ones.
 




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