Transient suppressor for 185V rails
The 1.5KE220CA-G: With a reverse standoff of 185V, it starts conducting at 209V minimum breakdown and hard-clamps at 328V maximum, shunting up to 4.57A of surge current (10/1000µs waveform). The single bidirectional channel means one device protects both polarities — no need to series two unidirectional parts.
Package and field-fit
Housed in a DO-201AA (DO-27) axial leaded package, the 1.5KE220CA-G is a through-hole part. No hot-air station needed — a soldering iron and a pair of cutters are all it takes to swap one on a board. The body is clearly marked with the polarity band (cathode) even though it is bidirectional; orientation does not matter for the clamping direction, but the band helps confirm the part is seated correctly. The tape-and-box packaging (not reel) suits low-volume repair kits or prototype builds.
For BOM planning, this part is a direct fit for any 185V rail that needs a single bidirectional TVS in an axial package.