Clamping performance — 30V rail protection
With a 30V reverse standoff voltage (working voltage), the SMAJ30CA-13 sits on a 24V or 28V rail and stays transparent until a transient pushes past 33.3V breakdown, then clamps at 48.4V maximum — enough headroom for most 30V-rated downstream silicon.
DO-214AC SMA — field-swappable footprint
Housed in the standard DO-214AC (SMA) surface-mount package, this TVS fits the same footprint as countless other SMA-packaged diodes — a rework tech with a hot-air station can swap it on site without a stencil. The -55°C to 150°C junction temperature range covers automotive under-hood and industrial enclosure environments; no derating needed at typical ambient temperatures up to 85°C.
General-purpose class — no power-line rating
Marked as General Purpose applications with no power line protection, this TVS is intended for signal and low-power rail transient suppression — not for sustained overvoltage clamping on mains or high-current DC buses. The bidirectional configuration means polarity is irrelevant during placement; the part clamps equally on positive and negative transients, simplifying layout on AC-coupled or bipolar signal lines.