Transient suppression parameters for the BOM line
The 1.5SMC12CA TR13 PBFREE: It clamps at 16.7V maximum and handles 90A peak pulse current, with a 10.2V reverse standoff voltage that defines the protected rail's steady-state ceiling. Breakdown occurs at 11.4V minimum, so the part starts conducting before the rail exceeds the clamp limit — this window is the protection margin the designer budgets.
Package, temperature range, and sourcing posture
Housed in a DO-214AB (SMC) surface-mount package, supplied on Tape & Reel — the standard reel format for pick-and-place assembly. Rated for operation from -65°C to 150°C junction temperature, covering military-temperature-range environments without derating at the high end.
What the 1500W rating means for a protection design
A shorter pulse (8/20µs) allows a higher peak current before the junction exceeds its thermal limit. Because it is a bidirectional device, it clamps symmetrical transients on AC lines or DC rails where the ground reference may swing positive or negative.