AEC-Q101 TVS for 36.8V rails
The 1.5SMC43CAHM3_A/I: The 40.9V minimum breakdown voltage and 59.3V maximum clamping voltage define the protection window: the diode starts conducting above 40.9V and limits the spike to 59.3V at 25.3A peak pulse current. This suits 36.8V nominal supply lines in automotive ECUs, battery management, and telecom rectifiers where the operating voltage sits below the standoff threshold.
The tape-and-reel packaging supports automated pick-and-place for high-volume assembly. No power line protection feature is claimed — this is a pure transient suppressor, not a crowbar or overvoltage latch.
Lifecycle and compliance
The base product number 1.5SMC43 covers the unidirectional and bidirectional variants in this voltage class. The suffix HM3_A/I denotes the AEC-Q101 qualified, bidirectional, and the specific lead-free plating finish.