The 1.5SMC33CAHM3/I: AEC-Q101 certification means this part has passed the semiconductor reliability stress tests (including high-temperature reverse bias, temperature cycling, and ESD) required for automotive-grade components.
Clamping voltage and pulse current — what they mean for the BOM line
The 28.2 V standoff voltage is the maximum DC or peak AC voltage that can be applied continuously without the device conducting. For a 24 V automotive system with a 28 V nominal alternator output, this provides margin before the TVS begins to avalanche.
Package, mounting, and assembly integration
Housed in the standard DO-214AB (SMC) surface-mount package, the part mates with the JEDEC footprint for this outline. The DO-214AB body is larger than the DO-214AA (SMA) sibling, which allows the 1500 W dissipation without exceeding the package thermal limits.
Active lifecycle — sourcing posture for this part
Production status is active per the manufacturer. There is no indication of NRND or EOL notice.