2. BU7486F-E2 Substitution Conclusion The BU7486F-E2 can be considered as a partial substitute in specific high-speed applications, subject to careful evaluation of system conditions. Key differences include an improved slew rate of 10 V/µs and a gain-bandwidth product of 10 MHz, enabling better handling of high-frequency signals and fast transient response, which suits high-speed scenarios such as audio or data acquisition. However, the quiescent current increases substantially from 116 µA to 6 mA, leading to significantly higher power consumption that may preclude use in battery-operated devices. The minimum supply voltage also rises from 1.8 V to 3 V, limiting compatibility with low-voltage systems. Output current is reduced from 100 mA to 12 mA, resulting in weaker drive capability that may not support direct replacement in high-load applications. The package width difference (4.40 mm versus 3.90 mm) could also affect mechanical compatibility. Overall, substitution may be feasible if the application demands high-speed performance and can accommodate the higher supply voltage and power dissipation, provided load conditions and thermal design are thoroughly validated.