1. Reverse Leakage Current (Ir): FR1D_R1_00001 is rated at 1 µA @ 200V, while FR1D is rated at 5 µA @ 200V. The higher leakage of the FR1D may lead to increased static power dissipation under high temperature or high voltage. Designs sensitive to thermal management or efficiency—such as high-voltage switching power supplies or low-power circuits—should verify the impact. 2. Junction Capacitance (Cj): 12pF versus 10pF, respectively. The slightly lower capacitance of the FR1D may contribute to marginally lower switching losses in high-frequency applications (e.g., >100kHz), though the difference is minimal and generally not a critical factor. 3. Price and Manufacturer: The Panjit component is approximately 10 times more expensive. The FR1D_R1_00001 likely offers tighter quality control, long-term reliability data, or brand premium, whereas the FR1D is better suited for cost-sensitive applications under benign operating conditions.