Design Guide - PMOS MOSFET for Reverse Voltage Polarity Protection Circuit
Rick on Twitter: "Quick #electronics tip: You can use a p-channel mosfet and a resistor to add reverse polarity protection to a circuit if a diode doesn't work due to it's voltage
Reverse polarity protection: P channel or N channel MOSFET ? - General Electronics - Arduino Forum
Design Guide - PMOS MOSFET for Reverse Voltage Polarity Protection Circuit