1500 W peak pulse in a DO-214AB footprint
The 1.5SMC100AHM3/H: Its 85.5 V reverse standoff voltage and 137 V clamping point at 10.9 A make it a fit for protecting 48 V telecom rails and 72 V automotive bus lines from transients up to that energy level.
AEC-Q101 qualification and the 150 °C junction limit
The junction temperature range spans -65 to 150 °C, so the 1500 W peak pulse rating holds across the full automotive temperature band, not just at 25 °C. The DO-214AB (SMC) package is a standard surface-mount footprint for TVS diodes in this power class.