# NFC Tag Cards ## What Are NFC Tag Cards? NFC tag cards are thin, credit-card-sized devices embedded with a Near Field Communication (NFC) chip and antenna. They are passive devices, meaning they do not have their own power source. Instead, they are activated by the electromagnetic field generated by an active NFC reader, such as a smartphone. When tapped, the NFC tag card transmits stored data to the reader, triggering a pre-programmed action on the device. From my personal experience, discovering NFC technology was a game-changer for my daily routine. I have always been fascinated by how small tech can create significant convenience. I found that I had a natural aptitude for setting up and automating tasks, and NFC tags became my favorite tool. My view is that they represent one of the most underutilized technologies for personal and business productivity. ## Technical Specifications and Parameters of TIANJUN NFC Tag Cards For those interested in the technical details, TIANJUN provides a range of high-performance NFC tag cards. Below are the specifications for one of our popular models. *Please note: These technical parameters are for reference data. For precise specifications, you need to contact backend management.* * **Chip Type:** NXP NTAG215 * **Chip Code:** 0x04 (Manufacturer Code for NXP) * **Memory Capacity:** 888 bytes (504 bytes user-available) * **Operating Frequency:** 13.56 MHz * **Communication Interface:** ISO/IEC 14443 Type A * **Data Transfer Rate:** 106 kbit/s * **Operating Distance:** Up to 10 cm (optimal within 3-5 cm) * **Dimensions:** Standard ID-1 (85.6mm x 54mm x 0.76mm) * **Material:** PVC, with optional laminated or sticker formats. * **Data Retention:** 10 years minimum * **Write Endurance:** 100,000 cycles ## Creative and Entertaining Applications The **NFC tag cards** truly shine in their entertainment and utility applications. Here are a few fun cases I've implemented or seen: 1. **Smart Business Card:** I programmed my **NFC tag card** with my contact details. Tapping it on