60V rail clamp with AEC-Q101 pedigree
The SMAJ60AQ-13-F is a 400W Zener TVS diode from Diodes Incorporated, designed to protect a single 60V rail from transient overvoltage events. Its 60V reverse standoff voltage means the device draws negligible leakage current at the nominal rail voltage, only starting to conduct when the transient exceeds 66.7V typical breakdown. The clamping voltage is 96.8V maximum at the rated 4.1A peak pulse current — that 96.8V ceiling is what the downstream circuitry must survive. This is a unidirectional device, so it clamps only positive transients above the standoff voltage. For a 60V battery or power bus in an automotive ECU, this covers load-dump and inductive kickback events where the surge polarity is known. The -55°C to 150°C junction temperature range matches the full automotive ambient envelope — the device stays within its SOA from a cold crank to an under-hood hot soak.
Automotive qualification and package fit
For a tier-1 supplier submitting a PPAP, this certification is the gatekeeper — a commercial-grade TVS would not pass the same reliability screen. The DO-214AC (SMA) package is a standard surface-mount footprint with a 2.6 mm body width and 4.5 mm length. The supplier device package is also listed as SMA, confirming the same JEDEC outline. The tape-and-reel packaging is the standard 13-inch reel format for automated pick-and-place assembly.
No stock-holding claim — quoted to order per RFQ.