Clamping voltage and pulse current for 24V rails
The 1.5KE24CAHA0G: The 22.8V minimum breakdown voltage ensures the device triggers before the rail exceeds safe limits, while the 33.2V clamp keeps downstream components below their absolute maximum ratings during a surge event.
Automotive qualification and temperature envelope
The DO-201AA axial package (DO-27 equivalent) is through-hole mounted, which simplifies rework compared to surface-mount TVS diodes — the leads absorb thermal stress during soldering and the body is easy to lift with a hot-air station without damaging the board pad.