Surge rating and protection window
The 1.5KE7.5A-G: The 132.74A peak pulse current at that same waveform tells you the actual current it can clamp, which is the number that matters when sizing the trace or fuse upstream. The protection window is tight: 6.4V reverse standoff (the rail voltage it leaves alone), 7.13V minimum breakdown (where it starts conducting), and 11.3V maximum clamping at full rated current. That 4.9V clamp-to-standoff ratio is typical for a 1500W TVS at this voltage — the clamping voltage is what the downstream circuit sees, so a 12V-rated IC on a 6.4V rail has plenty of margin.
Package and thermal environment
Through-hole in a DO-201AA / DO-27 axial body — the leads are 0.042-inch diameter copper, solderable with a standard iron or wave. The junction temperature range is -55°C to 150°C, so it survives reflow and lives under-hood or in an outdoor enclosure without derating the power rating until the ambient pushes past 25°C.