400 W clamping in a DO-214AC footprint
The SMAJ7.5A-13: The 8.33 V minimum breakdown voltage gives a guard band above the 7.5 V standoff — the diode stays transparent during normal operation and only conducts when the transient pushes the line past the breakdown threshold.
Package and board-fit
Housed in the standard DO-214AC (SMA) package, the SMAJ7.5A-13 is a surface-mount device with a low-profile body that suits dense PCB layouts. The SMA footprint is shared across the SMAJ family, so a single copper land pattern serves multiple voltage variants on the same board.