What this 1500W automotive TVS covers
The 1.5KE200AHE3/51: It clamps transients at 274V maximum, with a 190V minimum breakdown voltage and a 171V reverse standoff — sized for 24V or 48V automotive buses that see load-dump and inductive kickback.
AEC-Q101 and the temperature envelope
This part carries AEC-Q101 qualification, the automotive-grade discrete semiconductor standard covering temperature cycling, ESD, and reliability screening. The operating junction range is -55°C to 175°C — wide enough for under-hood or engine-bay deployment where ambient peaks exceed 125°C.
Obsolete — sourcing through independent channels
Vishay lists the 1.5KE200AHE3/51 as obsolete. Available through independent surplus and broker channels; each lot is date-code verified and confirmed at RFQ.
Package fit — DO-201AA axial
The DO-201AA (DO-27) axial-lead package is a through-hole form factor. The 1.5KE body diameter and lead spacing match the standard footprint used across the 1.5KE series; a board designed for any 1.5KE device accepts this variant without layout changes.