1500W peak pulse in a DO-201AE axial package
The 1.5KE540A-TP: Reverse standoff voltage is 459 V, with a minimum breakdown of 513 V — this gives a 54 V window between normal line voltage and the start of avalanche conduction, enough margin for a 480 VAC nominal rail after rectification.
Automotive temperature grade and board-fit note
The DO-201AE axial-lead package (through-hole) requires a 1.0 mm diameter hole per lead in the PCB — the lead bend radius should be at least 1.5 mm to avoid cracking the glass passivation at the body exit.