AEC-Q101 qualification and operating range
The 1.5SMC27A-Q: This part belongs to the 1.5SMC-Q series, which carries AEC-Q101 qualification — the automotive discrete semiconductor stress test standard covering temperature cycling, ESD, and reliability screening.
The supplier device package is DO-214AB (SMC), a standard footprint for 1.5kW TVS diodes. The copper pad area under the cathode tab on the PCB sets the thermal resistance — a larger pad lowers the junction-to-ambient temperature rise during the pulse.