The 1.5SMCJ7.5CA_R1_00001: The Tj rating of -55 °C to 150 °C places this part in the industrial/automotive temperature band — the upper bound is junction-limited, not ambient, so a board running at 85 °C ambient with moderate airflow still has thermal headroom for the clamping events this rating is designed to survive.
Packaging and sourcing posture
The DO-214AB footprint is a standard SMC outline — the land pattern is well-established and mates with any compliant layout for this package, so there is no proprietary pinout risk on the board side.