What this TVS diode does on the board
It clamps transients up to 38.9V at 12.8A peak pulse current — enough to protect a 24V rail in industrial control or telecom gear from surge events without blowing the trace.
The 500W peak pulse power rating (10/1000µs) tells you how much energy the diode can absorb in a single surge — enough for IEC 61000-4-5 level 2 on a 24V supply. The 24V reverse standoff means the diode stays off below 24V, so it won't leak or load your rail during normal operation. Breakdown starts at 26.7V min, and clamping hits 38.9V max at 12.8A — that's the voltage the protected IC sees during the event.
Housed in a DO-214AC (SMA) package, this is a standard surface-mount footprint that reflows on a normal lead-free profile. The Tape & Reel delivery suits automated pick-and-place.
That means you can commit it to a BOM without planning a last-time buy or second-source qualification for the next few years.
