1500W Zener TVS in DO-201AD axial
That 1500W rating means it can clamp a high-energy transient without failing — the junction absorbs the pulse and the axial-lead package conducts the heat into the board copper. Reverse standoff voltage is 70.1V typical, with a minimum breakdown of 77.9V and a maximum clamping voltage of 113V at Ipp. This window protects 48V or 60V rails from surges up to the clamping ceiling.
onsemi lists the 1N6293ARL4G as Obsolete. For BOM positions that need this 1500W, 70.1V standoff Zener in a DO-201AD axial package, the only sourcing path is through independent distribution or the spot market.
The DO-201AD axial package is through-hole — the leads are crimped and soldered into plated through-holes, so the board thickness and hole diameter must match the lead diameter for a reliable solder fillet.