5A PPTC PolyFuse Repairs itself Automatically after it Blows

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Explains the self-resetting mechanism of a PPTC polyfuse, demonstrating how the device recovers after overcurrent. Teaches circuit protection component behavior through practical observation.

A 5-minute video from Julian Ilett: “5A PPTC PolyFuse Repairs itself Automatically after it Blows”.

Engineering

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