What 10 V standoff and 17 V clamping mean for the protected circuit
The 1.5SMCJ10CA-AQ is a bidirectional Zener-based TVS in the DO-214AB (SMC) package, specified for automotive circuit protection on a single bidirectional channel. When a surge fires, the clamping stage clamps at 17 V maximum at the 88.2 A peak pulse rating (10/1000 µs waveform) — that 88.2 A figure is the current the clamping node must survive without thermal runaway during the event. The 1500 W peak pulse rating and the 88.2 A clamping current are tied to the same 10/1000 µs waveform; a longer or larger surge pushes the clamping voltage higher up the V-I curve and the device must absorb the resulting energy.
Automotive temperature grade and junction environment
The junction temperature range is -50°C to 150°C — this is the full automotive junction band, spanning cold-soak conditions up to under-hood and chassis environments where many consumer-grade TVS parts top out at 125°C. Combined with the automotive applications flag, this positions the part for engine bay modules, ECU input protection, and other high-temperature zones where a 125°C-limited part would require derating or substitution.
Packaging and field-replaceability considerations
Surface-mount strip packaging means it arrives on tape-and-reel or Ammo pack for automated placement — the DO-214AB footprint is a standard pad layout across most TVS families, so the board land pattern transfers cleanly. In field rework the DO-214AB is a workable hand-solder target with a fine-tip iron and preformed solder wick — the part is not BGA or hermetic, so a hot-air station is available but not required for on-site replacement.
Production status and sourcing posture
No official successor or cross-reference is listed for this part.