TVS clamping performance
The 1.5SMCJ110C: The 110V reverse standoff is the working voltage — the TVS sits idle below this without drawing significant leakage, so it does not load the protected rail in normal operation. That clamping ceiling is the number the downstream IC or bus sees under stress — the downstream circuit must survive 196V long enough for the TVS to do its job.
Thermal margin at the junction
The 110V standoff and 150°C TJ together make this suited for industrial or infrastructure lines where a clamped surge event can push the device back toward its thermal limit. A board-level derating check against the local ambient and PCB pad copper is standard practice before committing to the BOM.
SMC package and board fit
DO-214AB (SMC) is a common SMC outline — the foot pattern matches the industry standard, so it is a drop-in replacement across multiple suppliers who use the same case. Surface-mount termination means it reflow-solders to the board with a standard profile; no through-hole stress on the leads. The strip packaging designation means the part ships cut from a tape reel or cut tape rather than ammo pack — confirm the exact packaging variant at order time since reel vs. cut tape matters for your assembly line feeder setup.