Electronics > Beginners

I keep killing mosfets - what I do wrong?

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iMo:

--- Quote from: PMA on September 29, 2019, 08:05:20 am ---That is a good advice.

However, the problem is already solved. My soldering iron was in ungrounded outlet which caused large potential difference between grounded PCB and tip of the iron.

--- End quote ---

Long time back the mosfets (no esd diodes at that time on the chip) had the legs shorted by a piece of copper wire (a small spring actually). In harsh environment simply wind a thin wire around the legs and solder the transistor in. After soldering remove the wire.

Yansi:
That is unfortunately not that easy when soldering today's surface mount devices.  :-/O

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