Its 66.7V minimum breakdown voltage and 107V clamping ceiling at 4.7A peak pulse current (10/1000µs waveform) mean it triggers before the downstream silicon sees damaging overvoltage. Rated for 500W peak pulse power, it handles common surge events on 48V telecom buses, 60V industrial supplies, or automotive 24V systems with margin. The DO-214AC (SMA) package keeps the footprint small — about 4.5 mm × 2.8 mm — and the wide -65°C to 150°C junction temperature range suits outdoor or underhood placement.
The 60V reverse standoff voltage is the maximum continuous DC voltage the diode blocks without conducting. Above that, the 66.7V minimum breakdown guarantees the avalanche starts — any rail that stays below 66.7V sees no leakage. The 107V clamp at 4.7A is the peak voltage the load sees during a surge; your downstream components must survive that ceiling. This is a unidirectional device — it clamps only one polarity. For AC or bidirectional protection, you would need a pair back-to-back or a bidirectional part like the SMAJ60CA.
The DO-214AC (SMA) package is a standard two-lead surface-mount body with a cathode band. It reflows easily with a hot-air station at 260°C peak — the body is small enough that the pad heats quickly, and the cathode mark is clear. No exposed pad underneath, so no thermal paste or stencil adjustment needed.
The base product number is SMAJ60, and the suffix indicates RoHS-compliant termination finish.