mosfet - Reverse voltage protection and high-side current switch - Electrical Engineering Stack Exchange | Reverse, Inrush current, Protection
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 Voltage Protection Using P-MOSFET - Electrical Engineering Stack Exchange