Original Part
Alternative Part
1. LM358ST Substitution Conclusion
Feasible, but voltage and package compatibility must be evaluated. The LM358ST significantly outperforms the original part in bandwidth (800 kHz vs. 500 kHz) and slew rate (0.6 vs. 0.2 V/µs), offering better signal processing speed and frequency response. However, its maximum operating voltage (30V vs. 32V) is slightly lower, requiring verification that the application circuit does not exceed 30V. Additionally, its quiescent current (700 µA vs. 500 µA) is higher, leading to increased power consumption. A key difference lies in its wider package body (3.00 mm vs. 2.80 mm) and its automotive-grade (AEC-Q100) qualification. If the original design has tight space constraints, PCB layout must be reviewed. The automotive-grade certification can be considered a reliability advantage in general industrial applications.
2. LM2904YST Substitution Conclusion
Highly feasible and a closer alternative. The LM2904YST still outperforms the original part in bandwidth (700 kHz) and slew rate (0.6 V/µs), providing moderate performance improvement. Its output current (30 mA) matches the original part exactly, while its quiescent current (700 µA) is similarly higher, resulting in a slight increase in power consumption. It shares the same operating voltage range (30V maximum) and automotive-grade certification as the LM358ST, and its package width (3.00 mm) is also slightly larger. Therefore, voltage margin and PCB layout compatibility should be evaluated similarly. Overall, its performance parameters align more closely with the original part, making it a direct enhanced replacement.
Analysis ID: B97A-40FB000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com