Low Cost Reverse Polarity And Over Current Protection (corrected) | 480p |

All components are standard and cost pennies in bulk.

While the MOSFET stays cool, the PTC will get hot during a fault—keep it away from heat-sensitive components like electrolytic caps. To help you select the specific components, tell me: Your input voltage range? The maximum current your device pulls? All components are standard and cost pennies in bulk

The Gate is pulled low relative to the Source, allowing current to flow freely to the load. All components are standard and cost pennies in bulk

) rating is higher than your input voltage. If not, use the Zener diode to clamp it. All components are standard and cost pennies in bulk

Can be implemented in tiny SOT-23 or SOIC-8 packages for compact PCBs. ⚠️ Pro-Tips for Implementation Check Vgs: Ensure your MOSFET’s Gate-to-Source voltage ( VGScap V sub cap G cap S end-sub