Clamping window and pulse current capability
The 1.5KE150CAHA0G: Breakdown occurs at a minimum of 143 V, ensuring the device remains non-conductive under normal operating conditions up to 128 V. AEC-Q101 qualification adds the reliability screening — temperature cycling, high-temperature reverse bias, and ESD robustness — required for under-hood and chassis-mounted electronics where ambient temperatures reach 125 °C.
Through-hole DO-201 package for high-reliability assembly
The DO-201AA (DO-27) axial-lead through-hole package suits high-reliability and high-temperature applications where surface-mount solder joints may fatigue under thermal cycling. The junction operates from -55 °C to 175 °C, covering the full automotive temperature grade with margin for engine-bay heat soak. No power line protection feature is implemented — this is a unidirectional or bidirectional transient suppressor, not a crowbar or foldback device.