1500W automotive TransZorb® — what it covers
The 1.5KE15HE3/73: It clamps a 12.1 V reverse standoff to 22 V max at 68.2 A peak pulse current — the clamp voltage is what the downstream IC sees during a surge event. Built for automotive environments: the series carries AEC-Q101 qualification, meaning it passed the stress and reliability screens required for under-hood and chassis-domain electronics.
Vishay has marked the 1.5KE15HE3/73 as obsolete. No official successor order code is listed by the manufacturer — the replacement path is a functionally equivalent TVS in the same 1.5KE family with matching standoff and clamping specs, but the specific /73 packaging (tape and box, axial) may not carry over.
Package and board fit
Through-hole axial package — DO-201AA (DO-27) body, 1.5KE supplier device package code. The axial leads suit point-to-point wiring or through-hole PCB mounting; the lead diameter and body length match the standard DO-201 footprint, so a replacement part in the same package drops in without a board spin. Supplied in tape and box (TB) format — the /73 suffix identifies this packaging variant. The axial leads are taped for automatic insertion but boxed rather than reeled; verify feeder compatibility if using automated assembly.