I have a thin 2x2 mm surface that I'm trying to cool by 5-10 degrees Celsius in 1 second or less. Some very rough back-of-the-envelope calculations reveal that I need to remove ~50 mJ of energy to do this.
I've been thinking of using a Peltier module, but have no real experience with TECs, and therefore don't know exactly what to look for in terms of specs. The speed of the temperature change is my primary consideration. My questions:
Are there any manufacturers that sell very small Peltier modules that would roughly match my specifications, in prototyping quantities?
Are there any further considerations that I've missed?