1. Reverse Leakage Current (Ir @ Vr): The ST part is rated at 1.5 µA, while the Diodes part has a typical value of 100 µA (the maximum rating is typically higher). Under high temperature or high reverse voltage conditions, the Diodes device will exhibit significantly higher static power dissipation. This can impact system standby power consumption and generate more heat at elevated temperatures. 2. Maximum Junction Temperature (Tj Max): The ST part is rated for 175°C, compared to 150°C for the Diodes part. This parameter directly impacts thermal design margin and long-term reliability. The ST device can withstand higher temperature stress, offering an advantage in harsh environments or designs with limited thermal headroom. 3. Manufacturer & Product Line: STMicroelectronics typically targets higher-reliability industrial and automotive markets, and its specifications (particularly leakage current) are more conservative. Diodes Incorporated products generally offer better cost-performance, with parameters sufficient for general-purpose needs. This reflects differing priorities between quality/cost. 4. Package Details: Although both use a TO-220-3 Full Pack format, Diodes explicitly specifies "TO-220F-3," emphasizing a fully molded package with no exposed metal tab. This is a clear advantage in applications requiring reinforced insulation or where accidental contact must be avoided. The ST part does not carry this specific designation; detailed documentation should be consulted for confirmation.