Catalog : Embedded Electronics : RFID

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RFID Tag (125kHz)

by SparkFun
Price: $13.95

Product Description

Replacement: COM-10169. We've replaced these with SparkFun branded cards. This page is for reference only.

Description: This is a basic RFID tag used for presence sensing, etc. Works in the 125kHz RF range. These tags come with a unique 32-bit ID and are not re-programmable. Card is blank, smooth, and mildly flexible.


  • EM4001 ISO based RFID IC

  • 125kHz Carrier

  • 2kbps ASK

  • Manchester encoding

  • 32-bit unique ID

  • 64-bit data stream [Header+ID+Data+Parity]

Dimensions: 2.13 x 3.35 x 0.03" (54 x 85.5 x 0.8mm)