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LM393:Differences in part numbers and naming rules

hitoshi matsunaga
Prodigy 20 points
Part Number: LM393


Tool/software:

'm sorry for this basic question, but
when I look at the LM393 datasheet,
on page 24 and following, under "PACKAGING INFORMATION", various model numbers are listed.
Where should I look to see what the differences are between the model numbers?
If possible, I'd be grateful if you could tell me the rules for the model number characters.
Thank you in advance.

  • 0
    Guru 317770 points

    The LMxxx number, including A/AV/B suffixes, indicates different die revisions and electrical characteristics; see p. 1 of the datasheet.

    The D/PW/DDF/DGK/DSG/PS/P suffix indicates the package.

    The R suffix indicates a large reel (no suffix is tube).

    The G3 suffix indicates Sn lead finish; G4, NiPdAu.

    The .A/.B suffixes indicate tariff impacts; see ti.com/ordering-resources/import-details.html.

  • 0
    TI__Guru 61776 points

    Hi Hitoshi,

    Clemens gave a good summary. The front page table summarizes the differences.

    There are two basic families. The "classic" LM1/2/393 family with different temperature ranges (LM1/2/3 & 2903), max voltages (V) and offset voltages (A), and the newer "improved" LM393B family.

    For most applications, you would not see a difference between them. It just comes down to temp range and maximum offset voltage.