Over-Current Protection

Power & Charging

A safety mechanism that shuts down power delivery when current exceeds a cable's or device's safe limit.

Over-current protection (OCP) prevents overheating and fire hazards. USB PD chargers include OCP circuits, and e-marker chips communicate the cable's maximum current rating. Cheap cables without proper OCP can overheat under high load, especially non-compliant cables that bypass the CC pin resistor.

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