Active production, 1500 W peak pulse margin
The 1.5KE22A A0G: The breakdown voltage range starts at 20.9 V minimum, giving a 2.1 V window between standoff and breakdown — this margin absorbs steady-state rail ripple without conducting. The 1500 W rating at 25°C derates with ambient — at 125°C the power capability drops to roughly 60 % of the 25°C figure, so a design running near the thermal limit should budget the derating.
Lifecycle and supply posture
The 1.5KE series is a standard JEDEC DO-201 footprint, so parametric equivalents from other brands (same 1500 W, 18.8 V standoff, DO-201 package) can be qualified as alternates to avoid single-source exposure.