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LM358: what is diffrence between these two items LM358 26M and LM 358 18M

Jacek Machala
Prodigy 10 points
Part Number: LM358

Tool/software:

Good morning,

We have bought from your item LM358. This part number has been assembled in the PCB and our client stated that devicies which contain part number LM358 26M is working right but devicies which contine LM 358 18 M do not work. Could you check what is diffrence between these two items LM358 26M and LM 358 18M they are diverges only suffixem and what should to do client with devicies contined item LM 358 18 M to run it.

thank you

Janek

  • 0
    Guru 292630 points

    There are LM358 devices with different dies, but the guaranteed datasheet limits do not change. It is likely that your circuit uses invalid voltages. Please show the schematic, and specify the voltages you're measuring at the two input and the output pins. (For AC signals, show an oscilloscope trace.)

  • 0
    TI__Guru**** 155896 points

    Hello Jacek, welcome to the e2e forums.

    LM358 26M was assembled in June of 2022 (or 2012). LM 358 18 M was assembled in August of 2021 (or 2011). I wouldn't expect much difference even if they were 10 years apart.  Please provide more information about differences between working as expected an not working as expected.