thank you for replay
I've read B4 some datasheets (like most of us
)
I saw some crazy ratings , but I think that 1.8kW is true only for liquid hydrogen cooling XD ,
really , put it on CPU heat sink and I am quiet shure it will melt after passing the 150+W
what I meant is , with normal usage ( IE , 0.1 C/W to 0.03C/W or so ) heat sink , no more , what is the power you can put into the to-220 etc without lunch it to space
so many times I have manged to blow IRFP064N with 0.06C/W (or close) , just with 50W ( like 49C above 37 C ambient or 86C junction temp , ) oh
can 200W 175+ C blow at 86C and 50W load ?? what have I missed here ?
really trup for young players , I haven't really set and studied that case ,(have no time for some good reading + practising )
can you tell me where am I wrong in here ? (apart from my bad English
)
I know that mosfet is design for switching app , but it rated 200W (at 25C of coarse
) and 0.99C/W-175 C junction temp !!! and damm , B4 eBay I bought them for really costy price ! 64$ for only 10 of them !!! (stupid tight ass country !!! all is costy in here ! )