Active production — BOM-fit for 36.8 V rails
The 1.5SMC43CAHE3_A/I: Its 36.8 V reverse standoff voltage and 40.9 V minimum breakdown voltage make it a direct fit for protecting 36 V nominal DC buses — common in automotive 24 V systems with load-dump transients — against surges that exceed the rail rating.
Automotive qualification — what AEC-Q101 certifies
AEC-Q101 qualification means this part passed the automotive stress tests: temperature cycling, high-temperature reverse bias, and ESD robustness per the discrete semiconductor qualification standard.
Package and reflow — DO-214AB (SMC) footprint
Surface-mount in the DO-214AB (SMC) package, also designated as SMCJ — the 0.50 mm lead pitch and 8.13 mm body length fit a standard JEDEC footprint with a 3.0 mm copper pad under the cathode tab for thermal dissipation. The part ships on Tape & Reel (TR), compatible with automated pick-and-place at 8 mm tape width — no MSL bake required for standard reflow profiles up to 260°C peak.