1500 W peak pulse, 21.8 V standoff, AEC-Q101
The 1.5KE27CHE3/73: It clamps a 21.8 V reverse standoff to 39.1 V at 38.4 A peak pulse current (10/1000 µs waveform), absorbing 1500 W of peak pulse power.
Vishay lists the 1.5KE27CHE3/73 as obsolete. Available through independent surplus and broker channels. The axial DO-201AA package is standard and can be cross-referenced to other 1.5KE family parts with matching standoff and clamping voltages, but pin-compatibility is identical across the family footprint.
