The DO-214AB (SMC) footprint is a standard JEDEC outline for surface-mount TVS diodes. The 1.5SMC36CA/TR7 uses the same copper pad area as other 1.5SMC-series parts, so the thermal dissipation path through the solder joint and board copper is consistent across the family. The package is rated for the full 1500W peak pulse without an external heatsink. Tape & Reel (TR) packaging suits automated pick-and-place assembly. The 1.5SMC36CA/TR7 suffix indicates reel quantity per YAGEO's standard 1.5SMC-series carrier tape.
Clamping performance at the rail
This is the standard TVS derating axis: at higher ambient temperatures the peak pulse power derates linearly from 100% at 25°C to 50% at 175°C.
Bidirectional protection for AC-coupled lines
The single bidirectional channel clamps both positive and negative transients symmetrically. This is the correct choice for AC-coupled signal lines, data pairs, or any rail that swings below ground. A unidirectional part on the same BOM position would leave negative transients unclamped.