What the clamping voltage means for the board
The 1.5SMC75CAHM6G is a bidirectional TVS (Transient Voltage Suppressor) diode — the Zener designation reflects its clamping action rather than linear regulation.
Peak pulse power and the 1500 W rating
The 15 A peak pulse current at the clamping voltage confirms the diode is sized for the high-current limb of the surge curve, not just the ESD class.
AEC-Q101 temperature grade and automotive fit
The Automotive series designation means the part follows the Taiwan Semiconductor 1.5SMC automotive screening flow, a tighter process window than the commercial counterpart.
DO-214AB SMC package and surface-mount integration
The DO-214AB (SMC) package is the industry-standard footprint for TVS diodes on automotive ECU boards — the large die-attach pad beneath the body handles the transient thermal path from junction to board copper. Surface-mount orientation means pick-and-place compatible with standard automotive assembly lines; the Tape & Reel packaging suits high-volume reel feeding.