What this part does on the board
The 8V reverse standoff voltage means the diode stays off below 8V, so it won't load your supply during normal operation. When a transient pushes the line above 8.89V (minimum breakdown), it starts conducting and holds the clamp at 15V max — that's the protection window you size your downstream circuitry to survive.
Housed in a DO-214AC (SMA) surface-mount package, the same footprint as standard SOD-123W or SMB variants. The SMA body is large enough to hand-solder with a fine-tip iron or hot-air station without cooking the board — the cathode band is clearly marked, so orientation is straightforward under a loupe. If you are reworking a board that saw a transient event, the diode itself may have degraded — replace it rather than reusing it.
No stock-holding claim on this page.