LM2903: we want to know the meaning of the marking with LM2903DGKR part

Carol.li Carol.li

Part Number: LM2903

Tool/software:

Hi TI friends,

Could you help to let us know the meaning of the marking with LM2903DGKR part?

as belpw picture, LM2903DGKR IC has two kinds of silk screen we have been used, 36EC MAP and 26TI MAP, we want to know what do the meaning of 36EC and 26TI stand for? Are these two silk screen are the same parts? What's the difference with the two silk screen parts? looking forward your reply, thanks.

over 1 year ago

0 Ron Michallick over 1 year ago

TI__Guru**** 168666 points

Hello Carol,

Per datasheet addendum, LM2903DGKR must have MAP, MAS or MAU

The rest of the symbolization will change. For the changing text, first number is last digit of year. second number is month [1-C] = [JAN-DEC]

Carol.li Carol.li said:
What's the difference with the two silk screen parts?

They were built 1 year apart from each other.

0 Carol.li Carol.li over 1 year ago

Prodigy 65 points

Hi Michallick,

Thanks for your reply, the first and second number is year and month, could you tell us what's the meaning of the third and fourth number? such as EC and TI, thanks.

0 Ron Michallick over 1 year ago in reply to Carol.li Carol.li

TI__Guru**** 168666 points

Carol

Lot tracking. No, I can't decode this to a lot number. It is complicated and unnecessary.

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LM2903: we want to know the meaning of the marking with LM2903DGKR part