1. AS358MTR-G1 Substitution Conclusion For non-automotive-grade, mid-to-low frequency general-purpose applications, the AS358MTR-G1 can serve as a direct substitute, though its AC performance requires verification. The AS358MTR-G1 demonstrates high consistency with the LM158WDT in key DC parameters—including input bias current, offset voltage, quiescent current, and output current—and supports a similarly wide supply voltage range (3-36V). Combined with package compatibility, this makes it a viable drop-in replacement for most DC amplification, sensor signal conditioning, and comparator circuits where bandwidth and slew rate are not critical. Key differences are as follows: 1) Its slew rate and gain-bandwidth product (GBP) are not specified, leaving its AC response capability—such as handling high-speed signals or driving capacitive loads—uncertain. This poses a risk of performance falling short of the original part. 2) It lacks mention of AEC-Q100 automotive qualification, rendering it unsuitable for automotive electronics or industrial environments with stringent reliability requirements. Therefore, this is a functional substitution, not a grade-for-grade replacement.