# NFC Card Tag: Revolutionizing Contactless Technology ## What Are NFC Card Tags? **NFC card tags** represent a significant advancement in contactless communication technology. These small, versatile devices contain embedded NFC (Near Field Communication) chips that enable wireless data exchange when brought close to an NFC-enabled reader or smartphone. From my personal experience working with smart technology implementations, I've witnessed how **NFC card tags** have transformed everything from access control systems to interactive marketing campaigns. The seamless interaction they provide creates user experiences that feel almost magical in their simplicity. ## Technical Specifications of NFC Card Tags ### Physical and Technical Parameters When implementing **NFC card tags** in various projects, I've found that understanding their technical specifications is crucial for successful deployment. Here are the detailed technical parameters for standard NFC card tags: **Physical Dimensions:** - Standard credit card size: 85.6mm × 54mm × 0.76mm - Thinner variants available: 85.6mm × 54mm × 0.38mm - Custom shapes and sizes available through TIANJUN manufacturing services **Chip Specifications:** - NTAG213 chip: 144 bytes user memory, 7-byte UID - NTAG215 chip: 504 bytes user memory, 7-byte UID - NTAG216 chip: 888 bytes user memory, 7-byte UID - MIFARE Classic 1K: 1024 bytes memory, 4-byte UID - Operating frequency: 13.56 MHz - Data transfer rate: 106 kbit/s, 212 kbit/s, or 424 kbit/s - Read distance: Typically 1-4 cm (depending on reader power) **Performance Characteristics:** - Write endurance: 100,000 cycles (typical) - Data retention: 10 years minimum - Operating temperature: -25°C to +70°C - Storage temperature: -40°C to +85°C *Note: These technical parameters are reference data. For precise specifications tailored to your specific application, please contact our backend management team at TIANJUN.* ## Personal Experience with NFC Implementation In my work developing smart office soluti