What the 1500W peak pulse rating means for your protection design
The 1.5KE530: For a 477V reverse standoff voltage, this part sits on a nominal 400VAC or 480VDC rail and clamps transients that exceed the breakdown threshold at 477V minimum.
Package and board-fit — DO-201AA axial leaded
Through-hole DO-201AA (also known as DO-27) axial package — the body is cylindrical with formed leads that solder into plated through-holes. The DO-201 supplier device package footprint is standard across the 1.5KE family, so the PCB layout is shared if you need to swap between voltage variants in the same series.
Lifecycle reality — obsolete, but available through independent channels
The 1.5KE series includes many voltage variants, but a direct drop-in replacement requires matching the 477V standoff and 1500W rating — parametric substitution is possible but not confirmed as a formal second-source.
Sourcing posture — quoted to order against RFQ
Because the part is obsolete, availability is lot-specific and confirmed at quote time. We source through franchised excess and independent distribution — each reel carries traceability back to the original manufacturer. No stock-holding claim; pricing and lead time are confirmed against your BOM quantity when you submit an RFQ.