ULN2004A: ULN2004ADR Screen issue

Ning Li

Part Number: ULN2004A

Tool/software:

Dears，

We find the screen of ULN2004ADR show that 53ADDCM，but the DC is 2431，so we want to know What does the screen "5 "represent？

pls kindly find attachfilescreen and DC information ,thanks.

26 days ago

0 Patrick Shalton 26 days ago

TI__Mastermind 29240 points

Hi Ning,

Are you referring to the "+5" in 2431+5? This refers to the Extended Shelf Life designation.

Thanks,

Patrick

0 Ning Li 26 days ago

Intellectual 750 points

Hi Patrick，

I want to know the 5 in silk screen printing represents the year 2025, but the DC is 2431+5, which the customer thinks doesn't match,thanks.

0 Patrick Shalton 25 days ago in reply to Ning Li

TI__Mastermind 29240 points

Hi Ning,

If multiple date codes are included in the reel, the earliest date code is printed on the label.

Thanks,

Patrick

0 Ning Li 25 days ago in reply to Patrick Shalton

Intellectual 750 points

Hi Patrick，

Thank you for your reply. The customer still wants to know if the 5 on silk screen represents the year of packaging , and if DC2431 displays the year of wafer?

0 Patrick Shalton 24 days ago in reply to Ning Li

TI__Mastermind 29240 points

Hi Ning,

Please see the following document for more clarification: /cfs-file/__key/communityserver-discussions-components-files/196/How-to-identify-STC-_2600_-LTC-_2800_2_2900_.PDF

Are there any units in that reel that are from 2024, indicated by a "4" as the first character in the topside marking?

Thanks,

Patrick

0 Ning Li 24 days ago in reply to Patrick Shalton

Intellectual 750 points

Hi Patrick，

Thanks for your support，all the the first character in the topside marking indicated by a "5"，the label DC is 2431，"2024"，so the customer think not match，pls kindly help to check,thanks.

0 Patrick Shalton 5 days ago in reply to Ning Li

TI__Mastermind 29240 points

Hi Ning,

Are you sure these devices came from the package with this label? And, are you sure there is no material with other date codes in the reel?

What probably happened is that there are devices from different lots batched into this reel - we're following up with the relevant team to confirm this.

Thanks,

Patrick

0 Patrick Shalton 4 days ago in reply to Patrick Shalton

TI__Mastermind 29240 points

Hi Ning,

This has happened because of how the units were fabricated, and this is expected.

Thanks,

Patrick

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ULN2004A: ULN2004ADR Screen issue