The 1.5KE68AH: The 58.1V reverse standoff voltage and 64.6V minimum breakdown voltage define the protection threshold — the device starts clamping above 64.6V and holds the transient to 92V maximum at the rated 17A peak pulse current (10/1000µs waveform). AEC-Q101 qualification means the part has passed the full suite of automotive stress tests: temperature cycling, high-temperature reverse bias, and ESD robustness per the AEC-Q101 rev E standard. This is the baseline for any ECU, sensor module, or power distribution unit that must survive load-dump and inductive kickback transients under the hood.
Operating range and package — board-fit constraints
The DO-201AA (DO-27) axial through-hole package requires a drilled PCB hole and hand or wave-solder assembly — not a reflow process. The axial leads allow the body to be mounted flush to the board or elevated for better convection cooling.