1500W peak pulse — what the rating means for rail protection
The 1.5SMC110A: The 105V minimum breakdown voltage means the device starts conducting before the rail exceeds its absolute maximum rating, but after normal operating voltage. This window defines the protection margin for the downstream circuitry.
DO-214AB (SMC) — surface-mount footprint for 1.5 kW class
Housed in the DO-214AB (SMC) package, the 1.5SMC110A uses the standard surface-mount footprint for this power level — the same pad layout as other 1500W TVS diodes in the SMC body, so a board layout already accommodating this package accepts the part without a spin.