The 1.5SMC43CA-M3/9AT: The 59.3 V maximum clamping voltage at Ipp defines the worst-case voltage the protected circuit sees during a surge. The 25.3 A peak pulse current rating (10/1000 µs) tells you the maximum surge current the device can shunt before the junction overheats — above this, the TVS may fail short or open. For a 36 V nominal rail, this provides margin against steady-state ripple without leakage issues.
DO-214AB footprint and surface-mount assembly
The package supports reflow soldering and is compatible with standard pick-and-place equipment. Supplied in Tape & Reel (TR) packaging, suitable for automated assembly lines.