What AEC-Q101 qualification means for your BOM
The 1.5KE33CAHB0G: This means the part has passed the reliability stress tests (HTRB, H3TRB, temperature cycling, ESD) required for automotive PPAP submission. For an OEM auditor, capable is not qualified — this part carries the AEC-Q101 mark, so the PPAP documentation is the standard deliverable.
Peak pulse power and clamping — the surge-handling decision
The reverse standoff voltage of 28.2 V means it stays transparent below that DC bus level, so a 24 V automotive rail sees no leakage until the transient arrives. The breakdown minimum of 31.4 V gives margin above the nominal rail before the device starts conducting.