1500 W peak pulse — what it means on the line
The 1.5SMC22A TR13 PBFREE: That 1500 W figure is the energy it can clamp in a single surge event — not continuous dissipation. On a 24 VDC supply rail, the 18.8 V reverse standoff means it stays out of the circuit until a transient pushes past that threshold; breakdown starts at 20.9 V min, and the clamp hits 30.6 V max at the 49 A peak pulse current.
DO-214AB SMC — board-fit and handling
Surface-mount in the DO-214AB (SMC) package. The SMC body is larger than the smaller SMA/SMB siblings, which means the copper pad area under the terminals sets the thermal impedance for the pulse — a standard 2 oz copper footprint handles the 1500 W rating without derating. Tape-and-reel packaging suits automated pick-and-place; the part is RoHS-compliant (Pb-free per the order code). No lab bench needed for a field swap if you have a hot-air station and the pad layout matches.
Central Semiconductor lists this part as Active. For volume builds, the tape-and-reel format is the standard procurement unit.