TL074: Anfrage Texas Instruments TL074CN 1788447-00

Hello,

My German is too poor to understand this.  Can you repeat in English?  The e2e forum is intended for English communication.

Regards,
Mike

Hello Mike, 

we would like to inquire whether there could be any technical or functional differences between the TL074CN components marked with “4CARXPK” and “3CA0RKM”, as we are currently experiencing test failures in our production process.

We assume that the codes in quotation marks refer to batch numbers, which may indicate a specific production site.

Therefore, our general question is:
Are all TL074CN components identical in terms of construction and functionality, regardless of the additional markings on the parts?

For illustration, please find an example image attached.

Regards,

Melly

The TL074 has changed; see PCN#20221219006.1  and PCN#20221219008.0.

I do not know what your tests do.

Hi Melly,

Along the lines of Clemens' comments, the die has moved to a new fab, the PCN that describes this is:

https://www.mouser.com/PCN/Texas_Instruments_PCN20221219006_20221221091103261.pdf

The data sheet shows differences between the two die; you can find further description here:

https://www.ti.com/lit/ds/symlink/tl072.pdf, see page 34.

It is possible that the date codes could have the older die on the first, and the new die on the second.  The most direct way for us to identify this is if you have the shipping label: do you still have access to the shipping label that the devices came with?  It will have a "CSO" name that distinguishes the fab. as described in the data sheet above.

Generally the new die has better performance than the old.  Is your testing a basic "ICT" (in-circuit test) or is it testing the functionality of the system?

Regards,
Mike

Hi Mike,

we will check internal and come back to you if we need. 

Thank you for your help :)

Regards,

Melly

Ok, no problem, let me know if there's any other questions.

Mike