What the 1500W rating means for your protection design
The 1.5KE160A-T: The 136V reverse standoff voltage means the protected line must never exceed 136V in normal operation; above that the device starts to avalanche. Clamping is specified at 219V maximum at the 6.8A peak pulse current, so the downstream circuitry needs to survive a 219V transient clamped to that level. The DO-201AA / DO-27 axial package with through-hole mounting is the standard footprint for this power class — the large body and lead diameter handle the thermal pulse of a 1500W surge without lifting the junction temperature above the -55°C to 175°C operating range.
Obsolete — the sourcing reality for this TVS
Diodes Incorporated lists the 1.5KE160A-T as Obsolete. No official successor order code is recorded.