400 W unidirectional TVS for 6 V rails
The SMAJ6.0A-13: Its 6.67 V minimum breakdown voltage and 10.3 V maximum clamping at 38.8 A (10/1000 µs waveform) define the protection envelope for a 6 V supply line. This is a single unidirectional channel device — it protects one polarity line against positive-going surges. The 400 W rating at the 10/1000 µs pulse means it absorbs short-duration overvoltage events without failing, but sustained overvoltage or repetitive high-energy pulses will exceed the thermal limit.
Clamping voltage and pulse current — the real protection window
At the 10/1000 µs test pulse, the SMAJ6.0A-13 clamps at 10.3 V maximum when conducting 38.8 A. Above 6.67 V it begins to avalanche, and at 10.3 V it is fully clamping the surge. The 400 W peak pulse power is the product of the clamping voltage and the peak pulse current at the test condition. For a 6 V rail, the margin between the nominal supply and the 6.67 V breakdown is narrow — any transient that pushes the rail above 6.67 V triggers the TVS. This is typical for low-voltage logic and interface protection where the rail is close to the standoff voltage.
DO-214AC SMA package and temperature range
Housed in the DO-214AC (SMA) surface-mount package, the SMAJ6.0A-13 is a standard footprint for low-profile board-level transient protection. The supplier device package is also designated SMA, meaning the same land pattern applies across the SMAJ family. Power line protection is flagged as 'No' — this TVS is not intended for AC mains or high-energy power bus clamping. It is suited for DC signal lines, low-voltage power rails, and I/O ports where the energy in a transient is limited by the source impedance.
Active lifecycle — no obsolescence concern
This is a standard, mature TVS family with broad distribution — no need to stockpile or worry about a sudden EOL for current designs. Available in Tape & Reel (TR) and Cut Tape (CT) options. The TR format is the standard reel for automated pick-and-place assembly; CT is for prototyping or small-batch builds. Store the reels in a dry environment — the DO-214AC package is not moisture-sensitive per JEDEC levels, but humidity exposure over long storage can affect solderability.