Best choice for a diode to protect for reverse polarity

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ponpon777:

a diode to provide a reverse polarity protection

ponpon777:

I'm using ESP32 and would like to minimize the consumption.

What do these two have to do with each other ?

A Schottky diode would work.

The company is the world’s best Custom Schottky diode reverse leakage Supplier supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

For reverse protection, a modified version of this would work.

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I have only rudimentary knowledge of circuit design and need some advice.

I have a printed circuit board used in a device for automotive applications. I would like to include the means to prevent reverse current flow through a resistor on the board. Here is a section of the schematic ...

The advice I am seeking is what should the value of the diode be. In my case in an automotive application, when the engine is running the voltage could be 14 volts DC or so and the anticipated current could be as high as 1.0 ampere. I have seen articles stating there are different types of diodes for similar applications (junction diode, Schottky diode, etc.). I do not know which kind of diode would be preferred in this application nor do I know how to correctly specify the value for the diode. Any help is appreciated.

Steve

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