1500 W surge rating and clamping voltage
The 1.5SMC15A R7G: The 74 A peak pulse current at that waveform tells you the actual current the part can sink when the surge hits. The reverse standoff voltage is 12.8 V — the rail the TVS protects should never exceed this during normal operation. For a 12 V rail, this gives a comfortable margin above the nominal supply.
Package and temperature range
The operating junction temperature range spans -55°C to 150°C, covering both cold-start and hot-running conditions in industrial or outdoor equipment.
