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The 11th AddOhms Video is live and the subject is What is a MOSFET, and how to use them. This turned out to be the longest video I’ve made so far. In fact, I probably should have broken off the power dissipation part, but felt it needed to be addressed. I think many non-engineers look at a MOSFET (or regulator) datasheet and see a huge power value or current rating, but not realize you need a heatsink to achieve them.