Thermal margin and operating junction temperature
The 1.5SMCJ7.0: The junction temperature rating is -50°C to 150°C, which gives headroom for industrial environments where the board ambient can run warm — a closed enclosure at 85°C ambient still leaves 65°C of junction margin before the 150°C limit, assuming the thermal pad conducts heat to the board copper as designed in the SMC package.
SMC/DO-214AB footprint and surface-mount integration
The SMC (DO-214AB) package is a standard pick-and-place compatible outline — the cathode bar marks the polarity stripe. The thermal pad under the body (the large center metallization) must be soldered to a landed copper pad sized per the datasheet thermal recommendation — the package thermal resistance is dominated by this pad and the via array beneath it.
Sourcing posture — active part, BOM-planning friendly
Diotec lists 1.5SMCJ7.0 as Active — the part is in standard production and orderable through distribution against a BOM. The single-source risk is the Diotec brand — if second-source sourcing is a BOM requirement, a parametric search for the same 1500W / 7.8V breakdown class in SMC or SMB packages will surface alternatives; confirm polarity and peak pulse waveform match before substituting.