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RE: TO-220 package wattage rating ?

" To much is never enough" I like it. What I am thinking about doing is using a device way higher rated than the one used now because I think it has a good chance of sounding better, right or wrong. The question is still why would a 6oov 10a device be rated higher wattage than an very similar device rated at 650v and 18a. Amps cause heat, don't they? There should be thicker dies, wire or more surface area in the 18A device, which should allow it to take more heat. Something is missing. It seems to have something to do with the insulated package. When you look at the non insulated package wattage numbers things make a lot more sense. There is a greater correlation between current rating and wattage rating with the same or very similar voltage rating. Most of what I care about is that the higher current device has bigger stuff in it, lead wires...


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