Purpose and Calculation of TVS Diode and R1 in PMOS-Based Reverse Polarity Protection Circuit

Other Hardware General Electronics
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  • A FQP27P06 is one.
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You are right :frowning:

I missed all the time that the MOSFET is operated in reverse.

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Indeed. According to LTSpice the PMOS reverse protection circuit works exactly as advertised.

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