1500 W TransZorb in a Last-Buy Window
The 1.5KE6.8CA-E3/51: It clamps transients at 10.5 V maximum, protecting a 5.8 V nominal rail from surges up to 143 A. This part is in a Last Buy lifecycle phase — the manufacturer has announced end-of-life, and remaining inventory is being drawn down.
Parametric Fit for 5.8 V Rail Protection
The 10.5 V clamping ceiling keeps downstream silicon within its safe operating area during a surge event. The 143 A peak pulse current rating (10/1000 µs) corresponds to the 1500 W power rating — a direct indicator of the surge it can absorb before the junction exceeds its thermal limit. Packaged in a DO-201AA (DO-27) axial-lead through-hole case, it mounts into a standard 0.100-inch pitch hole pattern.
Sourcing Reality for a Last-Buy Part
Vishay has placed the 1.5KE6.8CA-/51 into Last Buy status. No official successor order code is recorded on this listing. The remaining supply flows through independent distribution and surplus channels — each lot is date-code specific and confirmed at RFQ. For a production BOM, the prudent move is to qualify a pin-compatible alternative from the same TransZorb family (same DO-201AA package, same 1500 W power class) while this order code is still findable. The parametric cross — 5.8 V standoff, 10.5 V clamp — is the anchor for the replacement search.