I have a question about TSH344IDT product.

[KKyeo.1]

Hello.

It is a Korean company called LIG Precision Technology. I have a question about TSH344IDT product.

I checked the document stating that the marking information of this product is TSH344I.

But I'm curious about the marking information about EZxxx.

Also, please let me know when the production was stopped.

Thank you.

[Winfred LU]

E: additional information

Z: assembled in ST Bouskoura

7: assembled in year 2007

05: assembled in fifth week of that year

[KKyeo.1]

The question of numbers has not been answered. The number of products we have can be interpreted as being produced in the future when approached with the answer. Can I know the production year and month by number?

We also have products marked with EZ845 and EZ551 unexpectedly in the attached picture. All markings are laser-marked.

[Winfred LU]

My mistake. The respond has been modified accordingly.

The four letters mean: PYWW

[KKyeo.1]

The last question is, what year and what week was it last produced?

[Winfred LU]

For the latest 3 letters YWW

Y = the last digit of year of assembly

WW = work week of assembly

Therefore,

705 means that it can be produced in 2007 or 2017, week 05

I supposed 2007 but actually it can also be 2017.

Following the same rules,

845 means it was produced in 2008 | 2018 week 45

551 means it was produced in 2005 | 2015 week 51

337 means it was produced in 2013 week 37

[KKyeo.1]

When did production stop?

Sorry, There was a mistake using the translator.

[Winfred LU]

I have no idea when did this product become obsolete.