TransZorb® bidirectional TVS — 1500W axial diode
The 1.5KE180CA-E3/51: With a 154V reverse standoff voltage and 171V minimum breakdown, it clamps transients to 246V maximum at 6.1A peak pulse current — sized for 150V-180V DC bus or AC line protection where bidirectional clamping is needed.
Last-buy lifecycle — sourcing through independent channels
Vishay has placed the 1.5KE180CA-/51 in Last Buy status — the manufacturer is no longer accepting new orders for volume production, but existing stock and surplus inventory remain available through independent distribution.
Axial DO-201AA — field-swappable through-hole form
The DO-201AA (DO-27) axial package is a through-hole form factor — the leads insert into plated through-holes and solder on the opposite side, making it straightforward to replace on a populated board with standard soldering iron and solder sucker. The wide range means derating the 1500W peak pulse at elevated ambient follows the standard power-temperature curve.
Bidirectional — single device for AC or floating rails
No power line protection feature is built in; this is a transient suppressor, not a crowbar or filter.