1500 W peak pulse — what that buys you on an automotive rail
The 1.5SMC100CAHE3/57T: The 85.5 V reverse standoff is the DC operating ceiling; the rail must stay below that in steady state. Bidirectional (one channel) means it clamps both polarities — no orientation concern on the board.
AEC-Q101 and the under-hood temperature range
The operating junction range spans -65°C to 150°C, covering the engine bay and exterior sensor modules where ambient can hit 125°C. The DO-214AB (SMC) package is a standard surface-mount footprint with a large copper tab for heat sinking — the 1500 W pulse rating assumes the PCB copper area is sized per Vishay's application note to keep the junction rise within the SOA.