Axial lead form and field-swappable fit
The 1N6269A-E3/51: Rated 7.02 V reverse standoff (typ) with a 7.79 V minimum breakdown — the part sits below the protected rail in normal operation and turns hard on when a transient pushes the node above the breakdown threshold.
Clamping performance and surge headroom
The clamping voltage is 12.1 V maximum at the 124 A peak pulse current rating (10/1000 µs waveform) — that 5 V gap above the 7.02 V standoff gives the downstream circuitry meaningful let-through voltage headroom before the suppressor clamps, which matters for node-sensitive ICs on the protected rail. Peak pulse power is rated 1500 W (1.5 kW), and the junction temperature ceiling is 175 °C — the wide temperature band covers outdoor enclosures and industrial bay ambient without derating in most panel configurations, though the board-level thermal path still sets the actual surge-withstand margin.
Last-buy reality and sourcing posture
Available through independent distribution as surplus or excess inventory — lot traceability and shelf age should be confirmed at RFQ since Zener characteristics can drift with long storage, and the lead solderability on aged axial parts warrants inspection on receipt.