1.5KE12A A0G — 1500W unidirectional TVS in DO-201
The 10.2 V reverse standoff means it sits across a 12 V bus or a 10 V regulated rail without conducting in steady state, only clamping when the line exceeds the 11.4 V minimum breakdown threshold.
What the clamping and breakdown ratings mean for your rail
The 16.7 V maximum clamping voltage at 94 A sets the upper limit the downstream circuitry sees during a surge. A 12 V bus powered device with a 20 V abs-max input can tolerate this clamp, but a 5 V logic rail would need a secondary stage — the clamp voltage is too high for low-voltage ICs. Breakdown is specified at 11.4 V minimum, meaning the device starts conducting between 11.4 V and the clamp voltage. The 10.2 V standoff ensures no leakage at nominal 10 V or 12 V levels; the 1.5 kW rating covers most industrial transient profiles up to the 94 A peak.
Active production — no lifecycle risk on this BOM line
If dual-sourcing is required, other manufacturers offer pin-compatible 1.5KE12A variants with the same electrical ratings.