1500 W surge clamp for 8.55 V rails
The 1.5SMC10CAHM3/H: It clamps a transient to 14.5 V maximum while handling 103 A peak pulse current, protecting a nominal 8.55 V working rail from load-dump and inductive kickback in automotive and telecom systems.
AEC-Q101 and the reflow profile
The DO-214AB (SMC) package is a standard surface-mount footprint with a large copper pad on the cathode tab that sets the junction-to-ambient thermal resistance; the 1500 W rating assumes the PCB copper area recommended in Vishay's application note for this series. Operating temperature spans -65°C to 150°C junction, covering the full automotive temperature envelope with margin for self-heating during a surge event.
Active lifecycle and sourcing posture
The HM3/H suffix indicates the automotive-grade AEC-Q101 qualified variant in the 1.5SMC family; the base product number 1.5SMC10 covers the non-automotive version if the application does not require the qualification.