1.5 kW peak pulse, 128 V standoff — what the ratings mean for your protection design
The 1.5KE150A_R2_00001: The 128 V standoff means the diode will not conduct appreciably below that DC voltage — it sits across the rail and only clamps when a transient exceeds the breakdown threshold (143 V minimum). At the clamping voltage of 207 V, the device shunts up to 7.2 A of surge current away from the protected circuit, limiting the voltage spike to a level that downstream 200 V-rated components can survive.
DO-201AE axial package and temperature range
Housed in a DO-201AE axial-lead package, the part is through-hole mounted — suited for point-to-point wiring or PCB layouts where a robust mechanical anchor is needed.