1500 W surge clamp for DC bus and rectifier rails
The 1.5KE150A-G: Its 128 V reverse standoff voltage protects 120 VDC nominal rails — telecom rectifiers, solar combiner boxes, industrial DC bus — where the working voltage sits below the standoff and the clamp fires at 207 V max to shunt transients. Breakdown occurs at 142.5 V minimum, so the part begins conducting before the rail hits the 207 V absolute-max clamp. The 7.25 A peak pulse current at the 10/1000 µs test condition gives the energy capacity for a typical surge from a nearby lightning strike or inductive load dump.
No pin-compatible second-source or successor is documented — the part is the sole order code for this 1500 W / 128 V unidirectional Zener TVS in the 1.5KE series. No compliance documentation (RoHS, REACH, UL, IEC) is cited in the available spec record. Standard practice for Comchip's 1.5KE family is RoHS-compliant and REACH-compliant; verify the specific certificate against your receiving inspection if regulatory submission is required.