1. Reverse Recovery Time (trr): Panjit: 35 ns, onsemi: 15 ns. In high-frequency applications such as switching power supplies, the onsemi part exhibits significantly lower switching losses and EMI noise, resulting in higher system efficiency. 2. Forward Voltage Drop (Vf): Panjit: 950 mV, onsemi: 920 mV. The onsemi device has slightly lower conduction loss, offering better thermal performance and energy consumption under continuous high-current or efficiency-sensitive conditions. 3. Reverse Leakage Current (Ir): Panjit: 1 µA, onsemi: 5 µA. Panjit demonstrates superior blocking characteristics, particularly at elevated temperatures, providing a minor advantage in system standby power consumption. Overall Assessment: Both are pin-compatible standard fast recovery diodes. For general rectification or low-frequency applications, direct substitution is acceptable. In high-frequency switching circuits (e.g., flyback converter freewheeling), the onsemi part delivers better performance. For cost-sensitive, lower-frequency applications, Panjit offers a price advantage while meeting basic specifications. The leakage current difference is typically not a primary design consideration.