DP83848I: DP83848IVV

Hi Yvonne,

Yes, the lot information can be extracted from this code. May I ask why you are asking? Are there any functional issues with devices with specific marking?

Regards,

Alvaro

The component is delivered with the PIN surface tin plated in different
finishes. The surface
can be NIPDAU or SN. We do not see good wetting on the side edges of the
PIN for
components with the PIN surface NIPDAU. Therefore, it would be important
for us to see
which factory the installed component came from.
According to information from TI, the printed code on the component itself
does not indicate
which factory the component comes from.
Unfortunately, we have no influence over which batch we are supplied from.
That's not good.
We would prefer SN surface.

Hi Yvonne,

Thank you for providing those details. Please allow me another day to consult with my team internally.

Regards,

Alvaro

Hi Yvonne, 

Thank you for your patience, please allow me another day to review.

Regards,

Alvaro

Hi Yvonne,

The email chain has finally found the correct people to address this issue, I will reply again when an update is available.

Regards,

Alvaro

Hi Yvonne,

I heard back from my team and firstly want to confirm what you have already stated:

We have multiple assembly sites producing DP83848IVV, which have different lead plating.

• 3CAX2JW is manufactured in TI Philippines, and uses NiPdAu lead (without SN plating).
• 35AXD4U is manufactured in TI Melaka (Malaysia) and uses SN finish lead frame.

We acknowledge the material difference and this is meant to improve our manufacturing and supply robustness. 

For your application, are the NiPDAu completely unusable? Would you be able to check the shipment box of the units and see the COO (Country of Origin) to identify which parts came from Malaysia, i.e. have the SN plating?

Regards,

Alvaro

Hi Alvaro

Ergebnis 3 Chargen.pdfPlease excuse the late reply. We have indeed had very different soldering results. Please see the attached list. The soldering results with the tinned components are very good and as expected. The soldering results with PdAu coating are very poor. We have tested several batches here, all of which are very poor.

Hi Yvonne,

Thank you for confirming. Do you have an idea for how many units you will need? There currently isn't a way for you to specifically order the SN plating parts, but we can work on getting you the units required.

Please note that I will be out of office for Thanksgiving, Nov 28th - Dec 4th. 

Regards,

Alvaro 

Hi Alvaro

Thank you. We currently have a way to improve the soldering a little with a special solder.
If we need tin-plated components again, who could we turn to?
Unfortunately, the NiPdAu surface is not a good option for us.
Thank you.