1. Reverse Leakage Current (Ir@Vr): The SS310B (300 µA) exhibits triple the leakage of the SK310BHE3-LTP (100 µA). Under high temperature or elevated reverse voltage, the SS310B will incur higher static power loss, potentially leading to increased operating temperature rise, which can impact system efficiency and long-term reliability. 2. Junction Capacitance (Cj): The SS310B (400pF @4V) is significantly higher than that of the SK310BHE3-LTP (125pF @0V). The differing test conditions further accentuate the practical disparity. In high-frequency switching circuits—such as secondary-side rectification in switching power supplies—the SS310B’s higher switching losses may reduce both diode and overall circuit efficiency, increase thermal rise, and potentially limit the maximum operating frequency. 3. Quality Grade & Qualification: The SK310BHE3-LTP is explicitly marked as “Automotive” grade and is AEC-Q101 qualified. The SS310B carries no such designation. The SK310BHE3-LTP’s manufacturing flow, test standards, and reliability data meet the rigorous demands of automotive electronics. Without equivalent qualification, the SS310B’s process consistency, long-term reliability, and performance under extreme temperature and vibration conditions lack comparable validation, rendering it unsuitable for automotive or similar high-reliability applications.