NEW PRODUCT – MiFare Classic (13.56MHz RFID/NFC) Bracelet [1KB]. This is a blank MiFare Classic silicone bracelet – often used for parties/events or identification but also found in other systems where a small proximity card is desired. The bracelet contains a NXP S50 chip and an antenna, and is passively powered by the reader/writer when placed a couple inches away

These can be read by almost any 13.56MHz RFID/NFC reader but make sure it can handle MiFare cards as there are a few other encoding standards (like FeLica) They are tested and work greats with both our PN532 NFC/RFID breakout board and Adafruit NFC/RFID Shield for Arduino!

These chips can be written to & store up to 1 KB of data in writable EEPROM divided into banks, and can handle over 100,000 re-writes. You can use our PN532 NFC/RFID breakout board or Adafruit NFC/RFID Shield for Arduino to read and write data to the EEPROM inside the tag. There is also a permanent 4-byte ID burned into the chip that you can use to identify one tag from another – the ID number cannot be changed.

S50 chip specification:

• 1 KiloByte (8 KiloBit) non-volatile EEPROM storage
• Built in encryption engine with 48-bit key
• 4 Byte unique identifier burned into the chip
• 13.56 MHz frequency

Bracelet specification:

• Fits wrists/ankles/hands up to 70mm (2.75″) diameter 25.4mm diameter
• Bracelet made of rugged waterproof silicone
• 0.9 grams / 0.03 oz
• Works about 1″ away from reader
• Weight: 14.86g

NXP S50 datasheet

In stock and shipping now.