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Difference in marking (PC16552DV and PC16552DV / NOPB)

user6537696
Prodigy 160 points


Dear Mr./Ms. Smith,

I got a PC16552DV, but I'm not sure if it's RoHS compliant.
Please tell me the difference between the stamps of PC16552DV and PC16552DV / NOPB.

Best regards,
Nakatsuka

  • 0
    TI__Guru 74322 points

    Nakatsuka,

    Do you know when you received the devices? The NOPB marking makes me think it's an older device since all TI devices are meant to be lead-free now. Older devices may show this because lead-free wasn't always assumed.

    Regards,

    Eric Hackett 

  • 0 in reply to Eric Hackett
    Prodigy 160 points

    Dear Eric Hackett san,

    I recently purchased PC16552.
    However, it is unknown when the product was manufactured.
    Is there a way to distinguish it from lead-free?

    Best regards,
    Nakatsuka

  • 0 in reply to user6537696
    TI__Guru 74322 points

    Nakatsuka,

    Other than knowing when it was manufactured, there isn't much else to determine the lead-free status beyond the marking. Can you share the topside markings? The codes on top can sometimes give enough information to know when they were manufactured.

    Regards,

    Eric Hackett

  • +1 in reply to Eric Hackett
    Prodigy 160 points

    Dear Eric Hackett san,

    I will attach a photo.
    Is this a RoHS compliant product?
    Please contact me.

    Best regards,
    Nakatsuka

  • 0 in reply to user6537696
    TI__Guru 74322 points

    Nakatsuka,

    Thank you very much for this information. In 2007, there was a change issued that removed the word "Patented" from the topside. Also when looking further into the data of this device, there is a tin and lead finish on the metal, meaning it does contain lead. My assumption here is that this device is not RoHS compliant, and in fact, has been obsoleted by TI and is not recommended for ordering or for new designs.

    Please let me know if you have any other questions.

    Regards,

    Eric Hackett