Zener TVS with 1500W surge rating
That 1500W rating means it can absorb a substantial surge before the clamping voltage rises to 245V max at 6.1A peak pulse current — the energy is dissipated as heat in the silicon junction, not passed through to the protected load.
Breakdown and standoff voltages
The reverse standoff voltage is 145V typ — the device remains non-conductive below this level. Breakdown occurs at a minimum of 162V, and clamping is guaranteed at 245V max under the 6.1A peak pulse current. The 17V gap between standoff and breakdown gives margin for normal line ripple without false triggering.
Active production, DO-13 package
Housed in a DO-13 through-hole package (also known as the supplier device package DO-13), it mounts into a standard 0.100-inch pitch hole pattern. The through-hole body handles the thermal cycling of soldering and rework without the pad-lift risk of a surface-mount part in the same power class.
The wide junction temperature range also means the leakage current at high temperature is a known spec — budget it in the system thermal analysis. It is listed for General Purpose applications — suitable for power-supply clamping, DC bus protection, and secondary-side transient suppression in industrial and telecom equipment. No power-line protection rating (the 'No' entry under Power Line Protection means it is not intended for AC mains primary-side use).