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SN74AHCT1G08: Meaning of package suffix

Ryuuichi machida
Guru 12045 points
Part Number: SN74AHCT1G08

Hello,

I would like you to confirm meaning of suffix "3" of "SN74AHCT1G08DBV3".
I can understand that this is related to material of lead from datasheet. However, I can not understand exact meaning this suffix.
 

I can understand meaning of "G4", "E4" of this device from following URL. However there is no information for only "3" in this page. Could you please tell me what only number of "3" mean ?
Logo product labeling | Environmental information (Eco-info) | Quality & reliability | TI.com

BR,

  • 0
    Guru 290610 points

    The "3" itself does not have any meaning and just shows that this is a variant of another device.

    The DBV3 is not "green", i.e., its mold compound contains Antimony trioxide and Bromine flame retardants.

    The electrical characteristics do not change. The bismuth in the lead finish is intended to prevent tin whiskers and should not affect solderability; if in doubt, ask your board manufacturer.

  • +1
    TI__Genius 16120 points

    Hi Ryuiichi,

    The suffix "3" is just to indicate an orderable part number of the base device SN74AHCT1G08 in the DBV package, as you have identified this variant has a "SNBI" lead finish. You can look up an orderable part numbers material content here: https://www.ti.com/materialcontent/home 

    The DBV3 orderable part number comes in a reel with 3000 units and has distinct device markings as shown in the package information below from the datasheet. The electrical characteristics do not change, the bismuth in the lead finish is intended to prevent tin whiskers. 

     

    Regards,

    Sebastian