1500W peak pulse — what that ceiling means for the circuit
The 1.5SMC7.5CA TR13 PBFREE: At 1500W peak pulse (10/1000 µs waveform), this 1.5SMC7.5CA sits in the mid-range of TVS Zener suppressors — it handles a transients without requiring the thermal headroom of a multi-kilowatt part, which keeps the DO-214AB package viable for board-level suppression ondc rails.
The clamping triad: standoff, breakdown, and clamping voltage
The reverse standoff of 6.4V sets the normal operating level — the TVS stays invisible to the circuit until a surge pushes the rail above that threshold. Once exceeded, the breakdown knee starts at 7.13V minimum and the clamping ceiling sits at 11.3V maximum at the rated 132A peak pulse current — the 4V differential between clamping ceiling and standoff is the let-through voltage the downstream load sees during suppression.