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I have a circuit where I'm using a bunch of T0-220 package transistors that will need heatsinks. Now, I remember reading on a circuit somewhere that they could only use the same heatsink for the ones that the.... _____________.... are connected to the same thing. I believe that blank was collector, but I can't find the site again. So, what IS the back (metal part) of those connected to? Is it the same for all T0-220 transistors, or will it vary device to device?
If the tabs are, in fact, connected to the middle (collector) pin, and you had two transistors with their collectors connected to the same thing, could you use a heatsink as an electrical connection? I'm assuming that'd be... bad practice to say the least.
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