TVS for 154V rails — what the ratings mean
The 1500W peak pulse power rating (10/1000µs waveform) gives the margin needed for a single high-energy event; the 31.5A peak pulse current rating (8/20µs) confirms it can handle short-duration, high-current spikes common in secondary surge protection stages.
Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE180ARL is a through-hole device intended for hand insertion or wave solder. The axial leads suit point-to-point wiring on terminal strips or PCB mounting with lead forming. No MSL rating is listed, but axial devices of this class are typically moisture-insensitive — no bake required before assembly if stored in a dry environment.