1500 W of clamp force in a DO-201 can
The 1.5KE68CAH: That 1.5 kW rating means it can absorb a short-duration surge — like an inductive load dump or a lightning-induced transient on a 48 V bus — without failing short. The clamping voltage peaks at 92 V when the surge current hits 17 A, so downstream silicon rated for 100 V or higher sees a safe voltage.
Automotive-grade screening for under-hood reliability
AEC-Q101 qualification puts this part through the same reliability stress tests — temperature cycling, high-temperature reverse bias, and ESD — that automotive modules require. That 175°C junction rating gives margin when the part is mounted near a hot engine block or inside a sealed ECU enclosure.
Bidirectional protection, one part, no orientation
A single bidirectional channel means the 1.5KE68CAH clamps equally on positive and negative transients — no need to worry about polarity when stuffing the board. The reverse standoff voltage is 58.1 V, so it stays off the line on a nominal 48 V rail and only starts conducting when the voltage exceeds the 64.6 V minimum breakdown. That window — 58.1 V standoff to 64.6 V breakdown — is tight enough to protect a 60 V-rated DC-DC converter without nuisance triggering from normal ripple.