Hi Herbert,
LM2904 has not TI LOGO is lable, is there PCN
Yes, the marking in the post-PCN LM2904 part has changed per PCN #20211123002.0
The changes involve updating the device symbolization format by removing the ECAT (Environmental Category) value and replacing with the "TI" text.
I do not see the following marking pattern for TSSOP package in our database.
Please keep in mind that all parts have to be source from TI authorized distributed or TI E-store in order to be authentic.
There is another PCN 20230306005.0 related to marking changes on Mar. 16, 2023, but I need to confirm that the PCN is related to the above change. I will investigate it further. I will find it out.
https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/4913/PCN20230306005.0.pdf
Here are the related PCN about other changes.
https://www.mouser.com/PCN/Texas_Instruments_PCN20210326004_20210329204642125.pdf
https://www.mouser.com/PCN/Texas_Instruments_PCN20230306005_2023031619031884.pdf
The thread below is related to other related PCN via mouser.com site.
If you have other questions, please let me know.
Best,
Raymond
Hi Herbert,
Could you check the purchasing chain events per LM2904 TSSOP op amp? Your company is Arrow and I will assume that the part is authentic and these parts have traceable to the source.
However, our database is shown that silk screen markings consist of 2 lines only, not 3 lines. In addition, the latest LM2904 TSSOP package should have TI Text as the company identification on the part, but the part has none. So I am unable to comment on its authenticity. Please provide us with additional information.
Best,
Raymond
Hi Herbert,
We have confirmed from Quality Team that the following LM2904 markings and the lot are authentic from TI.
If you have additional questions, please let me know.
Best,
Raymond
