OPA2340: back side marking

Dimitrius

Part Number: OPA2340

Hello All,

My customer rejects OPA2340UA at incoming inspection because back side marking is not described at the datasheet. Any comments on what does back side marking mean?

Best regards,

Dmitry

over 6 years ago

0 Dimitrius over 6 years ago

TI__Intellectual 1315 points

0 Dennis Goeke over 6 years ago in reply to Dimitrius

TI__Genius 11135 points

Dmitry

Would it be possible to get a picture of the top side also? We would like to get the date code.

Regards
Dennis

0 Dimitrius over 6 years ago in reply to Dennis Goeke

TI__Intellectual 1315 points

Dennis,

Top side photo is attached. Datecode: in progress.

Best regards,

Dmitry

0 Dennis Goeke over 6 years ago in reply to Dimitrius

TI__Genius 11135 points

Dmitry

The date code is the first two characters in the third line on the top side of the device; in this case 72 correlates as Year/Month - 2017/February.

I've talked to our Quality team and it appears the bottom marking is associated with the mold injection process at the factory and is for TI internal use only. TI has used the bottom side marking since at least 2014.

If the customer concern is authenticity, as long as the parts are purchased from TI or a TI authorized distributor, it is genuine.

Regards
Dennis

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OPA2340: back side marking