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LM324A: Looking for a drop-in compatible parts due to supply chain issues

Part Number: LM324A
Other Parts Discussed in Thread: LM2902, LM124, LM2902BA, LM324BA, , LM2902B, LM324B

I have a legacy design using LM324APW (TSSOP pkg) that I'm adding alternate parts to the BOM.  What are the drop-in compatible part numbers?  There are a LOT of similar parts on the same datasheet and the differences between the various part #'s and suffixes aren't explicitly stated and comparisons are difficult because the electrical characteristics are not in a single table. 

My best effort found these.  Are there others? 

  • LM324BIPWR
  • LM324KAPW
  • LM2902BIPWR

Looks like LM2902 has a lower max supply voltage, so that's out of the running.  LM124 & 224 aren't available in TSSOP pkg. 

LM324BA and LM2902BA are described in the family comparison, but I don't see any orderable part numbers in the table.  Do these exist?

  • Hi Chris,

    Welcome to E2E! 

    Below is a comparison table of the main specs for the LM324A, LM324B, and LM2902B. I recommend LM324B or LM2902B as drop-in replacements. If the customer needs a larger temp range, they can choose LM2902B. 

    The LM324BA and LM2902BA are in preview only, which is why these are not in the orderable part table. This is noted in the first page of the datasheet. 

    Please let me know if you have further questions.
    Thank you!

    Best Regards,