1500 W peak pulse — what it handles
It clamps transients on a 6.4 V nominal rail to 14.5 V maximum at 690 A (8/20 µs waveform).
Automotive grade — what AEC-Q101 means on the BOM
This part carries the full AEC-Q101 qualification, so it is released for automotive supply chains — under-hood, engine bay, or chassis-mounted ECUs where the ambient can hit 150 °C junction temperature. For a BOM that needs a documented automotive-grade transient suppressor, the SM15T7V5AY is the qualified drop-in; a commercial-grade TVS with the same electrical ratings would not satisfy the PPAP traceability requirement.
Package and footprint — SMC (DO-214AB)
Housed in a SMC surface-mount package, the SM15T7V5AY is a single-die, unidirectional device. The SMC body is larger than the smaller SMA/SMB packages, which helps spread the transient heat into the PCB copper.