160V rail clamp in a DO-214AC package
It clamps at 259V max with a 500W peak pulse power rating (10/1000µs waveform), which is enough to absorb most industrial surge events on a 160V rail without letting the voltage spike damage downstream silicon. Breakdown voltage starts at 178V min, so the part begins conducting well before the clamp voltage is reached — that margin gives the TVS time to turn on hard before the rail hits 259V. The 1.9A peak pulse current rating (10/1000µs) tells you the diode can handle a sustained surge of that amplitude without failing short.
Junction temperature and field reliability
No derating needed at the high end — the silicon is rated for full 500W peak pulse at 150°C junction. No exposed pad, no special thermal vias — just a two-pad land pattern that any pick-and-place line handles. Polarity marking is clear: the cathode band faces the rail side.
Microchip lists this part as Active. Supplied in Tape & Reel (TR) — the /TR13 suffix indicates 13-inch reel, standard 3000-piece quantity for DO-214AC.