2. LM2902DR2G Substitution Conclusion The LM2902DR2G is nearly identical to the LM224DR2G in electrical parameters and package. Therefore, its conclusion as a replacement for the MC3403D is essentially the same: superior static parameters (input bias current, supply range, output current) but an unspecified slew rate remains the primary technical risk. The key difference not captured in a parameter table is that the LM2902 series is specifically designed for an extended industrial temperature range (typically -40°C to +125°C). Its internal design is optimized for low temperature drift, so parameters like offset voltage drift over the full temperature range are generally superior to standard commercial-grade parts like the LM224 or MC3403D. In applications with significant ambient temperature variation, the LM2902DR2G is not only a viable replacement but may offer better long-term stability. In a standard room-temperature lab environment, its performance is indistinguishable from the LM224DR2G.