1500 W surge clamp for 12 V automotive rails
The 1.5SMC12CAHM3/H: With a 10.2 V reverse standoff voltage and a 16.7 V clamping point at 89.8 A, it protects 12 V nominal supply lines and signal interfaces from load-dump and inductive-kick transients in automotive and telecom equipment.
AEC-Q101 and the TransZorb construction
The TransZorb die structure delivers the 1500 W peak pulse rating with a low clamping factor — the 16.7 V clamp sits only 1.64× above the 10.2 V standoff, so downstream silicon sees less overvoltage stress during a surge event. The single bidirectional channel handles symmetrical clamping on both polarities, which simplifies PCB layout for signal pairs and AC-coupled lines — one device replaces two unidirectional diodes in series.
DO-214AB footprint and reflow handling
Housed in the DO-214AB (SMC) package, the part measures roughly 7.1 mm × 6.2 mm with a 2.6 mm seated height. Standard reflow profiles per JEDEC J-STD-020 work with this package — no special bake or moisture sensitivity precautions beyond the standard MSL level for SMC diodes.