1. Reverse Leakage Current (Ir): The Vishay device (500 µA) exhibits a leakage current 100 times greater than that of the ST device (5 µA). Under high temperature or high reverse voltage conditions, the static power dissipation of the Vishay part is significantly higher, which may reduce power efficiency, increase temperature rise, and render it unsuitable for ultra-low-power designs. 2. Operating Junction Temperature and Qualification: The Vishay device (TMBS®, AEC-Q101, Automotive, Tj max=150°C) is designed for automotive applications and carries automotive-grade qualification. The ST device (Tj max=175°C) lacks automotive certification but offers a higher maximum junction temperature. While the Vishay part meets automotive reliability requirements, the ST device may provide greater thermal design margin in non-automotive applications. 3. Technology Platform: Vishay employs TMBS® (Trench MOS Barrier Schottky) technology, aimed at reducing forward voltage (Vf). However, datasheet comparisons show comparable Vf for both devices in this case, so this difference does not translate into notable performance variation here. It primarily reflects distinctions in internal structure design and reliability characteristics.