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OPA330: Part Markings (Bottom)

Richard Nadeau
Prodigy 30 points
Part Number: OPA330

I would like help identifying the marking  23W9   found on the bottom of part OPA330AIDCKR. I am under the assumption this is not the Date Code based on the labeling of the package and reel which states the d/c is 2211.

Thank You.

  • 0
    TI__Guru* 93105 points

    Hi Richard,

    This is my understanding from when I researched this question before about out TI product underside marking -

    TI specifies and rigidly controls the OPA330AIDCKR topside marking information such as logos, date lot codes, etc. However, when it comes to the underside marking TI allows the product assembler, be it a TI facility or a contract facility, to mark the bottom side with IDs needed for their assembly operations. Therefore, that marking has meaning specific to those operations, but not to us as finished product.

    Regards, Thomas

    Precision Amplifiers Applications Engineering