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TLV07: TI’s PCN practices with dual-finish (Matte Sn | NiPdAu | etc.) parts

Saxon ZumBerge
Prodigy 120 points
Part Number: TLV07

Tool/software:

I had a question about TI’s PCN practices with dual-finish (Matte Sn | NiPdAu | etc.) parts.

Question: Once a part is qualified at manufacturing locations that use different termination finishes, will TI send out a PCN when they start/stop offering that part number in any one of the termination finishes? I’m assuming if a part is qualified at two sites with different termination finish materials, that TI will add/remove termination plating offerings from that part at will without the need for a PCN because the PCNs are regarding the qualification of manufacturing sites, not which sites are actively producing components.

Here’s some background -
We’re using the TLV07IDR on one of our programs. The TLV07IDR had a PCN that qualified the part to be manufactured at an additional fab site that uses matte tin for lead finish, so at the time we used this part in the design, it was a dual finish part which could come in Sn | NiPdAu under the same MPN. However, now the TLV07IDR is only being manufactured with NiPdAu termination finishes according to the TI website, but there are no PCN records of pure tin ever being “discontinued” from the part number.

My concern -
There are many parts in TI’s catalog that are currently only offered in NiPdAu according to TI’s website, but according to PCNs, these parts are also already qualified to be manufactured at sites that use pure tin termination plating. My concern is that because these parts are already qualified at those sites that offer pure tin, TI could begin producing and offering parts with pure tin termination finish at will with no PCN (since the manufacturing location is already qualified).

One example is LM4040C30QDBZR which was qualified to be manufactured with pure tin termination finishes at TFME, CDAT, and NFME sites in TI PCNs 20230228000.1 and 20170216000. Although this part is currently only available in NiPdAu according to the website, I’m worried that TI might be able to begin manufacturing this part at any of the pure tin sites and we would never know when the transition happens because those sites are already qualified so a PCN would not be issued.

  • 0
    TI__Intellectual 2670 points

    Hi Saxon,

    You're correct then we qualify a part to be assembled in a new site, we issue a PCN announcing the change and the proposed first ship date, but to my knowledge we do not send another PCN when an assembly site transition occurs. So for example, if you order a LM4040C30QDBZR currently, it will be in a NiPdAu finish, but since the part is qualified for other assembly sites that use Sn termination finishes, that might change in the future.

    When we start shipping material from an assembly site that has a different finish, this will be reflected on ti.com, so in the case where we use the other assembly sites listed, you could receive either finish, as outlined in the 20230228000.1 PCN below:

    If you require a specific finish, I would recommend working with your distributor or order directly with TI to order from a specific site for a specific finish.

    Best Regards,

    Alex Curtis