Over-Current Protection
Power & ChargingA 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.