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Polarity Protection for Sensitive Automotive Electronics - Three common solutions and its benefits and drawbacks

Reverse Polarity Protection

Automotive electronic circuits must be protected against reverse polarity. Such events may occur e. g. during service time or jump-starts of the vehicle. For this purpose, hardware designers must take appropriate measures to keep automotive electronics unharmed after a reverse polarity event.
Diotec offers a wide range of AEC-Q101 qualified parts to avoid negative current flow. Our Application Note describes three of the most common solutions for reverse polarity protection, including benefits and drawbacks as well as recommended components.

 

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