Are Transponder IDs and Tag Identifiers One and the Same?

By RFID Journal

  • TAGS
Ask The ExpertsAre Transponder IDs and Tag Identifiers One and the Same?
RFID Journal Staff asked 8 months ago

How do these differ if they are different? And can they be written by a user or changed?

—Prithvisagar

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Prithvisagar,

In the RFID industry, as in other technology sectors, terms are often thrown around loosely. There is no “transponder ID,” at least formally. There is the serial number in a transponder, which some may call a transponder ID. A serial number in an RFID tag is sometimes encoded by the chip’s manufacturer and sometimes by a user. “Tag ID,” a formal term for an identifier written to a chip by a manufacturer, differentiates that chip from all others. The tag ID cannot be written by a user or changed in any way.

I hope to see you at RFID Journal LIVE! 2020 in September.

—Mark Roberti, Founder and Editor, RFID Journal

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