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LM158: LM158J vs LM158JG vs LM158AJG vs LM158AJGB & /883 spec

Part Number: LM158
Other Parts Discussed in Thread: SE555M, , ,

Can you tell me what the difference is between these devices; LM158J, LM158JG, LM158JGB, LM158AJGand LM158 AJGB?  AND, are any of these parts compliant to the /883 Mil Spec?  Can you supply a data sheet that discusses the two different parts?  There is a huge listing of the various LM158 parts available at the end of the DataSheet, but there is NO explanation of what the differences are between each part number designation.  Is there a TI document that lists all the available part numbers and what the specific differences are?

Please help me with this.

thank you

ron simpson


  • Hello Ron,

    The price gives away the order.

    LM158J is the originally National Semiconductor device. So it is the most different.

    LM158JG is just a ceramic wide temperature device. This is why it is less expensive. 

    LM158JGB is military grade (note the B suffix) and note "Same as: 5962-8771001PA"

    The "A" is improved performance, see 5 Device Comparison Table in the data sheet.

    AJGB is "B" military grade and improved performance specification.

    The same discussion (for SE555M)  and some useful links can be found in this thread.

    Especially the post on Fri, Feb 14 2020 12:10 PM

  • Hi Ron,

    Thanks for the quick reply.

    So, the LM158J is all on its own (being that it is the original National Semi part)- is this correct?  Is it UNRELATED to the LM158JG, xxAJG, xxJGB and xxAJGB?  That is, these others are TI designs and, essentially, the same as or better than the original National Semi "J" only version - yes? 

    When you say "military grade", does that mean compliant to the /883 specification?



  • Ron,

    Yes, LM158J is different die design.

    For TI products the B or /883 suffix denotes MIL-PRF-38535 QML Class Q processing.   It no longer can be interpreted to mean MIL-STD-883 Level B processing. 

    Helpful Links:

    SBOA141 "QML Process Optimizations" at

    SBOA143 "QML flow, its importance, and obtaining lot information" at

  • Good morning again,

    Thank you for the support....I have a couple of additional questions.

    The LM158J - is this part equivalent to the TI "B" or /883 part?  If NO, then is there a version of the LM158J (National Semi Design) that is "B" or /883 compliant?

    Thank you.


  • Ron,

    LM158J is ceramic commercial just like the similar LM158JG

    Look at LM158QML for /883 versions of LM158-N

  • Hi Ron,

    Thanks for the reply.  More questions...of course.

    I think you are saying above that the LM158J, the commercial part of National Semiconductor original design, is the same (similar) to the LM158JG part, a TI designed commercial part.  AND, the part is not /883 compliant.  Is this correct?

    Regarding LM158QML, I could not find any reference to it in the LM158-N data sheet.  Can you supply a data sheet for the 'QML" part?

    Thank you.


  • Ron,

    I just found the QML part on TI website, the link did not work before...

    The parts listed in the "QML" data sheet, are these National Semi pedigree or TI pedigree - or a mix.  If a mix, how would I know which is which.....

    Sorry about all of the questions, but there are a lot of these parts and there is nothing straight forward to clarify what is what.

    Please answer my questions here and in my previous post.

    Thank you.


  • Ron,

    LM158J and LM158JG are National and TI designed ceramic packages with commercial ratings. National and TI designed products can be determined by package code. However, I am not aware of a list of TI versus National package codes list. I will check into that as I expect someone has already done such a thing.

    Product pages are alway totally National design or TI design, never mixed.

    LM158-N and LM158QML product pages are National design.

    LM158 and LM158A product pages are TI design. 

  • Hi again,

    Thank you for your continued support.  This is a related question to what we have been discussing.  Our client wanted to order this part number "LM158J/883"  They allegedly got this part previously from another source.  I looked on the LM158, LM158-N and LM158QML data sheets and could not find this part number.  I looked under the 5962-8771001PA and found a match under 'orderable device' on the LM158 datasheet, but the marking does not appear to agree with the "Device Marking" column.  Can you tell me if this number was valid at one time and has been discontinued.  If it has been discontinued, please tell me when.  Below is a pic of the part they are trying to get more of, it looks like a National part (symbol in left corner), but the 5962 number I look up is close to the TI LM158 part on the datasheet.  Please review and let me know as soon as you can.  This would be easier if we could talk on the phone, the one to two day delay in information exchange is very difficult.  If you can contact me by phone, please do so, I can be reached at <phone # removed>.  Thank you.


  • Hi Ron,

    That exact part number is no longer available.

    We do have a very close alternative from National.  The part number is LM158AJ/883 5962-8771002PA.

    They use the same die and manufacturing processes.  The difference between the two parts is that the LM158AJ/883 is a grade A part, which is a higher grade than LM158J/883.  The LM158AJ/883 is tested to tighter parametric limits for input offset voltage, input bias current and offset current.

    This part is covered in the product page and datasheet LM158QML. 

    The part needs to be ordered by the old National part number:  LM158AJ/883 and not by the SMD number.

    Both National Semiconductor and TI supplied parts to that SMD number: 5962-8771002PA

    When TI acquired National in 2011, it was decided that if a customer ordered by the SMD number, they would get the TI part.   To get the National version of the part it is necessary to order by the old National "NSID", which is LM158AJ/883.  Although the National part is no longer orderable by the SMD number, nothing about the part has changed and the part still fully meets the requirements of the SMD.

  • Kirby,

    Thank you for getting back to me, this is good information. 

    Can you tell from the part marking of the photo I sent earlier how old or what the date of manufacture for the part is?

    When did the 5962-8771001PA / LM158J/883 become unavailable or obsolete?

    Thank you.

  • According to the National datecode format, the part would have gone through lid seal on the 12th week of 2011.

    Notification of end of life of the LM158J/883 was sent out in 2008, with a last time buy date of December 1, 2009.  I do not have a record of the last date National actually made the product.

    Any questions about the validity of TI products should be sent to this email address:

  • Ron,

    What is the end goal for the picture?  I see a red dot; does that means it is suspected to be non-functional? If the goal is to replace it with a device that says 8771001PA on the lid, then LM158JGB will meet that need. The device that is most similar in physics (opposed to logistics) would be LM158AJ/883.

  • Kirby,

    Thanks for the manufacturing information and all of your help.


    Thank you for your continued support. 

    The goal of the picture was to show you what my client was trying to find more of.  From Kirby's note, it appears they are no longer available - not for some time.  I believe the red dot implies some kind of screening at their facility (client's).  To you and me it is not anything.  I think I have beaten this horse enough and will continue on with the TI Counterfeit team to address my other concerns.

    Different question - how long are TI parts good for after date of manufacture?  Meaning, at some time the solderability of the parts come into question and re-tinning or something of the leads is necessary.  Is there any kind of documentation from TI on this?

    Thank you.

  • Ron,

    SBOA152 "Datecode Selectivity & Shelf Life of Hermetic Packages" at