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Prefix meaning issue

Li Chen92
Expert 3040 points

Hi TI expert

Is Part Number JM38510-33202BRA the form-fit-function replacement part for Part Number M38510-33202BRX?
What does the prefix J in the part number means?

Best regards,

Thomas

  • 0
    Guru 317320 points

    According to page 4 of TI Space, Military and Enhanced Products Nomenclature, "JM38510" is the name of the process level.

    MIL-PRF-38535L says:

    3.6.3.2 “JAN” or “J” mark. The "J" marking is a legacy certification mark that was required by MIL-M-38510 device specifications and qualified on a QPL part by part basis. Since the “J” is often mistakenly considered part of the PIN, it may continue to be marked in front of the military designator portion of the device specification part number at the QML vendor’s option. This "J" was not and shall not be considered an element of the official part number used to assign a national stock number.