1500W surge clamp for 24V automotive buses
The 1.5SMC22AHM6G: AEC-Q101 qualification means this part has passed the full automotive reliability stress suite: high-temperature reverse bias, temperature cycling, and ESD robustness per the standard.
Package and board-fit for rework
The SMC body is large enough for hand-rework with hot air: the 1500W die sits on a slug that takes a few seconds to reflow, and the cathode band is clearly marked so orientation is unambiguous under a microscope.
Clamping window and peak current
Reverse standoff voltage is 18.8V — the rail sits below this during normal operation, so the diode draws only leakage current until a transient exceeds the threshold. Breakdown occurs at 20.9V minimum, and the clamping voltage is held to 30.6V maximum at the rated peak pulse current of 51A (10/1000µs). That 30.6V ceiling is the key number for the downstream component's survival voltage. Unidirectional configuration — a single Zener junction for positive-going transients; the forward drop handles negative spikes. One channel per package.