1. Reverse Voltage (Vr): The STTH302 is rated for 200 V, whereas the EGP30A is rated for 50 V. The STTH302 is suitable for higher‑voltage circuits (e.g., offline power supplies or motor drives), providing greater design margin and reliability. While it can safely replace the EGP30A in low‑voltage applications, this may constitute over‑design. 2. Reverse Recovery Time (trr): The STTH302 has a trr of 35 ns, compared to 50 ns for the EGP30A. The faster switching of the STTH302 reduces switching losses and EMI in applications such as switching power supplies or inverters, leading to improved efficiency. 3. Operating Junction Temperature: The STTH302 supports up to 175 °C, while the EGP30A is limited to 150 °C. The higher temperature rating of the STTH302 makes it more suitable for harsh environments (e.g., automotive or industrial equipment), enhancing system robustness. 4. Capacitance Parameter: The EGP30A specifies a capacitance of 95 pF @ 4 V; this parameter is not provided for the STTH302. In high‑frequency applications (e.g., rectification or noise‑sensitive circuits), the unknown capacitance of the STTH302 requires measurement or datasheet verification to avoid potential resonance or loss issues during substitution.