1. Reverse Leakage Current (Ir): The typical leakage current of the SS26B (500µA @60V) is five times higher than that of the SK26HE3-LTP (100µA @60V). Under elevated temperature or high reverse voltage conditions, the SS26B exhibits significantly higher static power dissipation, which can impact overall system efficiency and increase thermal management overhead. 2. Operating Temperature & Qualifications: The SK26HE3-LTP is AEC-Q101 qualified with a junction temperature range extending down to -55°C, classifying it as an automotive-grade component. In contrast, the SS26B lacks specified qualifications and has a minimum junction temperature of -50°C. This indicates that the SK26HE3-LTP is manufactured with more stringent materials, processes, and reliability testing, making it suitable for harsh automotive environments with vibration and extreme temperature cycling. The SS26B is typically intended for commercial/industrial-grade applications. 3. Capacitance: The SS26B features a slightly lower junction capacitance (180pF) compared to the SK26HE3-LTP (230pF). This may offer a marginal advantage in very high-frequency switching circuits, but the difference is negligible for most applications. The primary differentiators remain reliability and leakage current.