LM2903: marking on top of the device

Juraj Vanko

Prodigy 30 points

Part Number: LM2903

Tool/software:

Hello,

can you please let me know what is the exact meaning of the top marking on this device? for example 2CTI or 32TI.

Thank you

1 month ago

0 Paul Grohe 1 month ago

TI__Guru 51646 points

Hello Juraj,

"MAP" is the identifier code for LM2903DGKR

The first two characters are the year and month code.

3 = last digit in year

1 = January

TI = Texas Instruments

Because there are multiple assembly sites, there are slight differences in the markings.

Are there any markings on the bottom of the device?

0 Juraj Vanko 1 month ago in reply to Paul Grohe

Prodigy 30 points

Hi Paul,

there are no markings on the bottom side. We have more devices with different marking. For example 318E, 32ON, 32OH. We had some problems with these, can you please check what these markings mean (those last two characters)?

Thank you

0 Paul Grohe 1 month ago in reply to Juraj Vanko

TI__Guru 51646 points

Hello Juraj,

We cannot disclose the complete information on how the parts are marked - due to counterfeiting.

The device on the right (2CTI) follows the current standard of "YMTI".

I need to dig a little deeper to see if the one on the left is correct as it does not contain the trailing "TI", but by the date-code it should end with TI...but there are also 8+ possible assembly sites for this device and not all have switched to the new markings.

Do you have access to the reels or box labels?