I have an N channel MOSFET and a P channel MOSFET. I found that for the P-channel MOSFET I need a heatsink that is lower than 5°C/W. The N channel MOSFET needs a heatsink that is lower than 13°C/W.
I have done quite a bit of research, but I don't know how I can figure out the proper heatsink for these two requirements. I have tried looking up datasheets for heatsinks, but I wasn't able to find any. Maybe heatsinks don't have datasheets. I'm not really sure.
How do I know how much heat a heat sink can handle? Where do you find this information?
Example: I found this heatsink on Amazon, but it says absolutely nothing about how much heat it can handle. How do I figure that out?