The 1.5SMC170AHM3_A/H: That 1.5 kW rating means it absorbs a single high-energy transient — like a load dump or inductive kick — without failing short, as long as the event stays within the 6.4 A peak pulse current (Ipp) limit. The clamping voltage at that current is 234 V max, so downstream components see no more than that across the protected rail.
Electrical thresholds — standoff, breakdown, and clamping
Reverse standoff voltage is 145 V — the rail voltage below which the diode is effectively open circuit. Breakdown voltage is guaranteed at 162 V min, so the device starts conducting between 162 V and the clamping voltage of 234 V. That 162-to-234 V window defines the protection zone: a 145 V nominal bus sees protection kicks in before the downstream 200 V-rated capacitors or FETs see an overvoltage.
Surface-mount DO-214AB — footprint and assembly fit
Housed in the standard DO-214AB (SMC) package, a JEDEC outline with a 0.050-inch gull-wing lead form. Tape-and-reel packaging suits automated pick-and-place for high-volume automotive lines.
Active and available — sourcing reality
Listed as Active.