Device identity and protection window
The 1.5SMC82A is a unidirectional Zener-type transient voltage suppressor — a single-channel TVS that clamps positive transients on a rail to protect downstream circuitry. The reverse standoff of 70.1V sets the normal working voltage; once the input exceeds the minimum breakdown of 77.9V, the device avalanches into conduction and holds the clamped level below 113V at the rated peak surge current. Rated peak pulse power of 1.5 kW (10/1000 µs waveform) means it absorbs a substantial transient — the 113V clamping maximum is specified at 13.3A peak pulse current, so a designer sizing the surge current against this part knows exactly what the downstream sees under the rated event. The DO-214AB (SMC) package is the industry-standard footprint for 1.5kW TVS diodes — pin-compatible across manufacturers, so a board layout for this package accepts any SMC-packaged 1.5SMC82A variant. Tape & Reel packing suits automated placement on the panel. Lead-free plating confirms RoHS compliance — the part is ordered as 1.5SMC82A TR13 PBFREE specifically for lead-free assembly flows.