Electronics > Beginners
How much would it hurt if a 2n3904
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Cnoob:

--- Quote ---Instead of having transistors explode it is far more interesting to examine the paremeters at the extremes of their operating ranges.
What happens to a transistor when it gets really hot (but still works).
What happens if you put too much voltage on a resistor (More than stated in the datasheet).
What happens if you put too much current through a resistor?

And ask yourself what happens, and why, and what you can do with it and learn from it.
--- End quote ---


I was taught about aboslute ratings using an AC128 and it's the only transistor I remember it's IC max current of 1Amp before thermal runaway kills it. (You have time to switch off power before you kill it.)


Refrigerator:

--- Quote from: kjr18 on February 17, 2019, 04:31:37 pm ---Some years ago I used a transistor to limit the current for brushless dc fan in my "lab power supply". I think it was something like BC547 or something like that. I noticed that after a while a fan was spinning faster, turns out that when transistor was getting warmer, it was allowing for more current to flow. So maybe when tested with higher temperatures you could invent free energy device :-DD


--- End quote ---
That's kind of sort of how thermoelectric generators work.
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