Nano Power Inverter - Roll Your Own Style

Author	Message
Warpspeed Guru Joined: 09/08/2007 Location: Australia Posts: 4406	Posted: 02:10am 17 May 2019       Without the copper, all the heat concentrates into a very small area of some fairly thin aluminium. With a copper plate, the heat is spread over a far wider area into the aluminium. [quote]How much of a change does this have on the life/performance of the MOSFET? [/quote] Probably not much, unless you are really pushing the absolute limits of junction temperature. I suppose it depends on your appetite for risk. Cheers,  Tony.