600W bidirectional TVS for automotive rails
With a reverse standoff voltage of 47.6V and a minimum breakdown voltage of 53.2V, this bidirectional device clamps transients to a maximum of 100V at the peak pulse current of 40A (8/20µs waveform). The single bidirectional channel protects against both positive and negative surges on a single line.
AEC-Q101 and the operating envelope
Clamping voltage and rail selection
The 47.6V reverse standoff is the maximum DC voltage the TVS will not conduct at — it sits comfortably above a 24V nominal automotive rail (which can transient to 36V during load dump) but is too high for a 12V system (typically 13.8V nominal, with transients to 26V). For 12V rails, a lower-voltage TVS in the same family would be the correct fit. This must stay below the absolute maximum rating of the downstream ICs — a 60V-rated MOSFET would be at risk, while a 100V-rated device has margin.
On the rework bench, it is straightforward to remove with hot air and replace without lifting pads — the body is large enough to grip with tweezers, and the two terminals are clearly marked for polarity (though bidirectional means no orientation concern).