What the 1500 W peak pulse rating means for your protection design
The 1.5KE220AH: That 1500 W rating is the device's ability to absorb a single high-energy surge — a load-dump transient on a 24 V truck battery, for example — without failing. The clamping voltage at that peak current is 328 V, which sets the upper limit the downstream circuitry must survive. It is a unidirectional suppressor — one channel, biased for DC lines where the signal stays above ground.
Automotive qualification and temperature envelope
Graded Automotive and qualified to AEC-Q101, the 1.5KE220AH is built for the reliability demands of vehicle electronics — engine control units, battery management systems, and auxiliary loads that see under-hood temperature swings. It handles the thermal dissipation of a 1500 W pulse without a heatsink — the axial leads conduct the heat into the PCB copper.
Sourcing and compliance
Compliance documentation — RoHS, REACH, and AEC-Q101 qualification data — is maintained by the manufacturer and can be provided with the shipment.