1500 W surge clamp for 214 V rails
The Vishay 1.5SMC250AHE3_AIH is a 1500 W peak-pulse Zener TVS diode from the 1.5SMC TransZorb® series, qualified to AEC-Q101 for automotive applications. It protects a single unidirectional line with a 214 V reverse standoff voltage — the maximum continuous DC or peak AC voltage it can withstand without conducting. The 1500 W rating means it absorbs that energy without failing — sized for load-dump and inductive-kick protection on 24 V nominal automotive buses where transients can reach 200 V+.
AEC-Q101 and the -65 to 150 °C operating range
AEC-Q101 qualification means this part passed the automotive-grade stress tests: high-temperature reverse bias, temperature cycling, and ESD robustness per the standard. This is a unidirectional Zener TVS — a single channel with the cathode marked on the package.
