Active production, automotive-grade TVS
The 1.5SMBJ15CA-H: It is AEC-Q101 qualified, meaning it has passed automotive reliability stress tests including temperature cycling, ESD sensitivity, and latch-up immunity per the JEDEC standard for discrete semiconductors.
What the 1500W rating means for your rail
The 16.7V minimum breakdown voltage ensures the device starts conducting before the rail exceeds the downstream component's absolute maximum rating. The -55°C to 150°C junction temperature range covers under-hood and engine-bay thermal profiles. The AEC-Q101 qualification confirms the part has been tested for high-temperature reverse bias (HTRB), temperature cycling, and moisture resistance — relevant for an ECU or sensor module that sees both cold cranking and hot soak conditions.
The SMB footprint is standard across the 1.5SMBJ series, so a single PCB layout can serve multiple voltage variants by populating the appropriate breakdown voltage part.