Low Cost | Reverse Polarity And Over Current Protection (corrected)

The Gate is pulled low relative to the Source, allowing current to flow freely to the load.

No blown fuses to replace; the PTC resets once the short is fixed. The Gate is pulled low relative to the

This circuit provides a robust, low-cost solution for protecting sensitive electronics from two common killers: accidental battery reversal and excessive current draw. By using a P-Channel MOSFET instead of a standard diode, you achieve high efficiency with minimal voltage drop. 🛠️ The Core Components The Gate is pulled low relative to the