Clamping window and pulse handling
The 1.5KE43CAHE3_A/D: The breakdown voltage range starts at 40.9V minimum, ensuring the diode begins conducting before the protected circuit sees a voltage above the 59.3V clamp ceiling.
Package and board-fit
Housed in a through-hole DO-201AA (DO-27) axial package, it mounts into a 1.0mm diameter lead hole on a standard PCB — no special footprint beyond the axial lead spacing. The Tape & Box packaging is a Vishay-specific bulk format; for reel or ammo-pack alternatives, confirm the base product number 1.5KE43 suffix at order time.
The AEC-Q101 qualification provides the documentation package (PPAP, RoHS, REACH) that automotive tier-1s require for line-down risk management.