Surge protection for AC and bipolar DC rails
The 1.5KE180C-E3/73: Its 146 V reverse standoff voltage means the diode remains non-conducting under normal line conditions up to that level, only clamping when a surge exceeds the breakdown threshold (162 V min).
Bidirectional clamping for line-to-line protection
The through-hole DO-201AA (DO-27) axial package fits standard 0.100-inch pitch layouts and is hand-solderable or wave-solderable.
Lifecycle status and sourcing
Vishay lists this part as Obsolete.