Quote:
Originally Posted by acerpower
No, the top of the fet may bubble a bit.
the fet usually just appears to have a burnt spot on top when they fry.
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I've replaced a lot of burned FETs. I've even seen one split entirely in half when it went.
Sometimes when a FET burns it can do damage to a board. Thats why I recommend having a little safety margin especially if your talking about a mini-Z board.