64V Rail Clamp – 1.5 kW Pulse Rating in DO-214AB
Its 1500W peak pulse power rating (10/1000µs waveform) means it can absorb substantial surge energy before the clamp voltage rises to 114V at 13.2A — the worst-case voltage the downstream circuitry sees during the event. The 71.1V minimum breakdown voltage sets the trigger threshold: the device starts conducting when the rail exceeds that level, but stays off below 64V reverse standoff to avoid loading the line during normal operation. This window — 64V standoff to 71.1V breakdown to 114V clamp — defines the protection envelope for the connected components.
Package and Mounting – DO-214AB (SMC) on Tape & Reel
The SMC footprint is larger than the smaller SMA/SMB variants, which helps distribute the heat from repeated surge events across the solder joint and PCB copper pad. The wide Tj envelope also provides margin when the device self-heats during repetitive pulse trains.