1.5 kW pulse rating in an axial-lead DO-201AE
The 1.5KE13A_R2_00001: It clamps transients at 18.2 V maximum when the surge current hits 82 A, making it a straightforward choice for protecting a 12 V rail against load-dump or inductive kickback events. The reverse standoff voltage is 11.1 V — the rail voltage the part leaves alone during normal operation. Breakdown starts at 12.4 V minimum, so a 12 V supply sitting at regulation tolerance won't trigger conduction until the transient pushes past that threshold.
Through-hole DO-201AE — hand-solderable and board-serviceable
The DO-201AE axial package is a through-hole form factor — you can hand-solder it into a prototype board or a production PCB without reflow profiling. The leads are long enough to form and trim, and the body stands off from the board, which helps with convective cooling during the pulse. Operating temperature range spans -65°C to 175°C junction, so it survives the thermal cycling of outdoor or engine-bay environments. The wide range also means derating the peak pulse power at elevated ambient is necessary — the datasheet curve (not reproduced here) shows the 1500 W rating holds at 25°C and drops linearly above that.
Obsolete — sourcing through independent channels
Panjit lists this part as obsolete. Because it is a standard DO-201AE Zener TVS, a functionally equivalent replacement from another brand (same standoff, clamping, and package) can be sourced if a board spin is acceptable. The original Panjit part number is the only verified fit for a drop-in replacement without layout changes.