{"title":"13.56MHz RFID/NFC Card - NTAG203 Chip","handle":"13-56mhz-rfid-nfc-card-ntag203-chip","url":"/products/13-56mhz-rfid-nfc-card-ntag203-chip","description":"This blank 13.56 MHz RFID/NFC card contains an NTAG203 chip with 144 bytes of writable EEPROM storage. The standard credit-card-sized form factor makes it suitable for access badges, information sharing, and NFC prototyping. The embedded chip and antenna are passively powered — no battery is needed.\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.\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\nStandard Card Size – Credit-card form factor for badge holders and wallets\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 – Standard credit card size\n\n\nIdeal For\n\nNFC business cards and information sharing (URLs, vCards, Wi-Fi credentials)\nAccess control and identification badges\nNFC reader/writer prototyping and testing\nAttendance and event tracking systems\n\n\nPackage Contents\n\n1× RFID/NFC Card (NTAG203)\n\n\n\nTip: Need more storage and don't require smartphone compatibility? The 13.56 MHz RFID/NFC Card (1 KB) offers 1 KB of EEPROM and 100,000+ write cycles using the Mifare Classic chipset.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":7610,"title":"Default Title","sku":"AF-4034","price":5.33,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}