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A quick question about purpose

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michaeltoan

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Looking at an ST Micro part number 1NK60Z, I see that it has back to back zener diodes between the gate and source. What is the purpose of these?
 

gophert

Well-Known Member
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Looking at an ST Micro part number 1NK60Z, I see that it has back to back zener diodes between the gate and source. What is the purpose of these?
Over voltage protection and/or static electricity protection.
Will protect positive or negative voltage (forward voltage of zener is like standard diode) so you'll have zener voltage plus 0.6volts (positive or negative).
 
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