Obsolete — what it means for your BOM
The 1.5KE130: For existing designs, the part is available through independent surplus and broker channels.
Clamping performance and the 1500W rating
The reverse standoff voltage is 111 V, meaning the device will not conduct appreciably below that rail voltage — it sits transparently across the line until a transient exceeds the standoff level. The 187.95 V clamp defines the maximum voltage the downstream circuitry sees during the surge event.
Temperature range and package
The junction temperature range spans -55°C to +175°C, covering industrial and some automotive under-hood environments. The DO-201AA axial-lead package is a through-hole footprint — the leads are bent and soldered into plated through-holes; the body is cylindrical and typically mounted with the cathode band oriented per the silkscreen. The 1500 W rating is a peak pulse rating, not continuous dissipation. Derating follows the standard TVS curve: above 25°C the peak pulse power must be reduced linearly per the datasheet's derating factor — the absolute-maximum table (page 7 of the 1.5KE series datasheet) gives the exact slope.