Active production, 500 W Zener TVS in SQ-MELF B
The 1N6123AUS/TR: Its minimum breakdown voltage of 48.5 V and a reverse standoff of 38.8 V make it a direct fit for clamping transients on 36 V or 38 V rails in general-purpose industrial and telecom circuits.
Clamping voltage and pulse current at 70.1 V, 7.1 A
At the 10/1000 µs waveform, the maximum clamping voltage is 70.1 V at a peak pulse current of 7.1 A. This clamping ceiling defines the voltage stress the downstream components see during a surge event — if the protected device's absolute maximum rating is below 70 V, this TVS may not provide enough margin.
Lifecycle: active, no LTB risk
Microchip lists the 1N6123AUS/TR as Active.