Automotive-grade TVS — what AEC-Q101 means for the BOM
The 1.5SMC30CAHM6G: The breakdown voltage starts at 28.5 V minimum, and the reverse standoff is 25.6 V typical. For an OEM auditor, the PPAP documentation package is available — this is a qualified part, not an industrial part dressed up as automotive. A 24 V automotive bus sees transients well above the 25.6 V standoff; the 41.4 V clamp keeps the downstream ECU safe.
The footprint is standard for the SMC family — reflow profile follows the standard JEDEC J-STD-020 for the package body. No special handling beyond typical moisture sensitivity for a molded epoxy package. Supplied in Tape & Reel, compatible with automated pick-and-place assembly. The bidirectional channel means polarity is not a concern during placement — either orientation clamps the same way.
Taiwan Semiconductor Corporation lists the 1.5SMC30CAHM6G as Active. No pin-compatible direct replacement is registered — this is the active order code for the 1500 W bidirectional automotive TVS in the SMC package.