1500 W peak pulse — what the clamp voltage means for the rail
The 1.5SMC13AS_R1_00001: The 11.1 V reverse standoff voltage means it sits across a 12 V nominal rail without conducting leakage; the 18.2 V clamp voltage at 82 A peak pulse current limits the transient to a level the downstream ICs can survive.
Active production — no last-time-buy pressure
It is a standard-production Zener TVS, not a custom or phased-out line item, so BOM continuity is straightforward.
DO-214AB SMC — footprint and board-fit note
Surface-mount DO-214AB (SMC). The package is a JEDEC standard outline with the cathode band on the body — no polarity confusion during pick-and-place.
Temperature range and derating
That covers the full industrial and automotive ambient envelope — useful for a TVS that sits on an exposed rail in a hot enclosure. The 1500 W peak pulse rating is derated above 25°C per the standard power-temperature curve in the datasheet.