Automotive-grade transient suppressor for 36.8 V DC rails
The 1.5SMC43AHM3_A/H: It clamps at 59.3 V maximum with a 25.3 A peak pulse current, protecting downstream electronics on a 36.8 V reverse standoff rail.
Clamping voltage and breakdown — the protection threshold
With a minimum breakdown of 40.9 V and a clamping ceiling of 59.3 V, this TVS triggers before the downstream components see overvoltage on a nominal 36.8 V bus. The 25.3 A peak pulse current rating (10/1000 µs) defines the surge it can absorb without failing short.