500 W bidirectional Zener TVS in an axial body
It comes in a through-hole B, Axial package (supplier device package Axial) and operates over -55°C to 175°C junction temperature.
Package and mounting
The 34.97 V clamping ceiling at 14.25 A tells you the maximum voltage the protected circuit sees during a 10/1000 µs surge — design the downstream components to survive that peak. The 18.2 V reverse standoff is the DC or peak AC voltage the diode can hold off without conducting appreciable leakage; the protected rail should stay below this level in normal operation.
Active production — no end-of-life concern
The axial package is a standard through-hole format, widely sourced through distribution.