1500 W Zener TVS — automotive-grade surge clamp
The Vishay 1.5SMC24AHM3_A/H is a 1500 W peak-pulse-power Zener TVS diode in the DO-214AB (SMC) surface-mount package, part of the 1.5SMC TransZorb® family. This is the spec that decides whether the downstream DC-DC or load switch survives a load-dump or inductive kickback.
Automotive qualification and deployment context
The qualification covers the reliability stress and PPAP documentation that automotive Tier-1s require for a BOM line. The DO-214AB (SMC) footprint is standard for 1500 W TVS diodes — the copper pad area under the cathode tab sets the thermal impedance, so the board layout directly affects how many repeated pulses the part can handle before the junction temperature climbs above the 150 °C absolute max.