Automotive TVS with AEC-Q101 qualification
The 1.5KE12HE3/54: It carries AEC-Q101 automotive qualification, meaning it meets the stress and reliability screening required for Tier-1 automotive PPAP submissions. The reverse standoff voltage is 9.72V typical, with a breakdown voltage range starting at 10.8V minimum — sized to protect 12V automotive rails from load-dump and inductive transients.
Obsolete — sourcing through independent channels
Vishay lists the 1.5KE12HE3/54 as obsolete. No official successor is recorded. A board spin to a different package or pinout may be needed for a direct replacement. For a pin-compatible alternative within the same Circuit Protection family, a parametric search for 1.5kW axial 10.8V breakdown TVS with AEC-Q101 will surface current-production candidates from Vishay's P6KE or SA series — but no single order code is guaranteed to drop in without verifying the clamping profile and Ipp rating.