The 1.5SMC530: Lot traceability and date-code consistency are verified before shipment.
Zener TVS key ratings — 1500W, 477V standoff, 725V clamp
The 477 V reverse standoff voltage defines the maximum DC or peak AC voltage the protected line can carry without the device conducting — above that, the TVS clamps. This is the voltage the protected circuit sees during a transient; downstream components must survive this level without damage.
DO-214AB (SMC) package — board-fit note
Housed in the standard DO-214AB (SMC) surface-mount package, also referred to as SMCJ by some suppliers. The package footprint is shared across the 1.5SMC series, so a single PCB land pattern serves the full voltage range. Supplied in Tape & Reel packaging, consistent with automated pick-and-place assembly. No power line protection — this is a unidirectional device for signal or DC rail protection.