1500 W peak pulse, AEC-Q101, axial-leaded TVS
The 1.5KE75AHE3_A/D: It clamps at 104 V maximum with a 14.6 A peak pulse current, protecting a 64.1 V nominal rail from transients.
Clamp voltage and standoff — what the ratings mean for the rail
With a 64.1 V reverse standoff (working voltage), the diode stays transparent below that level — leakage is negligible. Breakdown starts at 71.3 V minimum, and the clamp hits 104 V at 14.6 A. That 39 V window between standoff and clamp is the headroom the downstream circuitry must survive. The 1500 W rating is the peak pulse power into a 10/1000 µs surge — a standard automotive load-dump or inductive kickback pulse.
Package and board integration — DO-201AA axial leaded
The DO-201AA (DO-27) axial package is through-hole — the leads are 0.96 mm diameter tin-plated copper, and the body is 5.3 mm diameter by 7.5 mm long. It mounts into a 1.1 mm hole on a standard PCB or terminal block; the axial form factor suits point-to-point wiring in power distribution boxes as well as PCB layouts. No power line protection (the diode is unidirectional, not a steering array), so it clamps one polarity only. For AC or bidirectional rails, two devices back-to-back are needed.
Sourcing and lifecycle — active, no obsolescence concern
The base product number is 1.5KE75; the full suffix (AHE3_A/D) encodes the AEC-Q101 automotive grade and the tape-and-box packaging.