{"title":"13.56MHz RFID/NFC Bracelet - NTAG203 Chip","handle":"13-56mhz-rfid-nfc-bracelet-ntag203-chip","url":"/products/13-56mhz-rfid-nfc-bracelet-ntag203-chip","description":"This blank 13.56 MHz RFID/NFC silicone bracelet contains an NTAG203 chip with 144 bytes of writable EEPROM storage. It is passively powered — no battery is needed. Hold the bracelet a few centimetres from a compatible 13.56 MHz RFID/NFC reader to read or write data.\n\nThe NTAG203 is a \"Type 2\" NFC tag that works with virtually any NFC-enabled smartphone (Android or iPhone) without proprietary licensing issues. Unlike Mifare Classic tags, NTAG-based tags avoid NXP patent restrictions and are supported by all modern phones. The chip is also compatible with standard 13.56 MHz RFID readers that support ISO/IEC 14443 Type A.\n\nKey Features\n\n\nNTAG203 Chip – 144 bytes of writable EEPROM in 4-byte banks, 10,000+ write cycles\n\nPermanent 7-Byte UID – Factory-burned unique serial number for identification (cannot be changed)\n\nUniversal Smartphone Compatibility – Type 2 NFC tag, works with all NFC-enabled phones\n\nSilicone Wristband – Comfortable, wearable form factor\n\nPassive Operation – No battery required; powered by the reader's RF field\n\n\nSpecifications\n\n\nFrequency – 13.56 MHz\n\nChip – NTAG203\n\nStandard – ISO/IEC 14443 Type A\n\nNFC Type – Type 2\n\nMemory – 144 bytes writable EEPROM\n\nWrite Endurance – 10,000+ cycles\n\nUID – 7-byte permanent serial number\n\nForm Factor – Silicone bracelet\n\n\nIdeal For\n\nWearable NFC projects and smart wristbands\nContactless information sharing (URLs, vCards, Wi-Fi credentials)\nAccess control and event identification\nNFC reader/writer prototyping and testing\n\n\nPackage Contents\n\n1× RFID/NFC Silicone Bracelet (NTAG203)\n\n\n\nTip: Need more storage? The 13.56 MHz RFID/NFC Bracelet (1 KB) offers 1 KB of EEPROM and 100,000+ write cycles, though it uses the Mifare Classic chipset which is not compatible with most modern smartphones.\n","vendor":"Adafruit","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":7440,"title":"Default Title","sku":"AF-4043","price":9.15,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}