Last-Buy status on a 1.5 kW TransZorb
The 1.5KE82CA-E3/51: It clamps transients to 113 V maximum at a peak pulse current of 13.3 A. This part carries a Last Buy lifecycle status — the manufacturer has announced end-of-life, so availability runs through existing inventory and surplus channels.
Clamping voltage and breakdown window
Reverse standoff voltage is 70.1 V, with a minimum breakdown of 77.9 V. The 113 V clamping ceiling means a 70 V rail sees the transient clipped before it reaches the downstream silicon — the margin between standoff and clamp is the protection zone. The DO-201AA axial package handles the 1.5 kW pulse without secondary heatsinking in most layouts.
Sourcing a Last-Buy TVS
For existing BOM lines, we source through independent distribution — lot traceability and manufacturer warranty are confirmed at quote time, not assumed from stock. No pin-compatible cross-reference or official replacement is published by Vishay for this specific order code. If you need a drop-in for a board in repair, the parametric match is a bidirectional 1.5 kW TVS with a 70 V standoff in DO-201AA — but the exact breakdown window should be verified against the original part's datasheet.