The **MA78TAG-R** refers to a high-frequency (HF) RFID tag/inlay manufactured by **Murata Manufacturing**. It is specifically designed as part of their **MAGICSTRAP®** series, which focuses on small-form-factor RFID solutions for product tracking, anti-counterfeiting, and industrial applications. --- ### 1. Core Technical Specifications The MA78TAG-R is a passive RFID component, meaning it does not have an internal power source and draws energy from the reader's magnetic field. | Feature | Specification | | :--- | :--- | | **Communication Protocol** | ISO/IEC 15693 (NFC Forum Type 5 compatible) | | **Operating Frequency** | 13.56 MHz (High Frequency) | | **Memory Capacity** | 896 bits User Memory / 64-bit Unique ID (UID) | | **Interface** | Air interface (Wireless) | | **Packaging** | Surface Mount Device (SMD) / Tape & Reel | | **Dimensions** | Approx. 3.2 x 3.2 mm (Ultra-compact) | --- ### 2. Key Electronic Components & Design The device is integrated as a single module that simplifies the traditional RFID antenna design. * **Integrated Circuit (IC):** It uses a high-performance ISO 15693 compliant chip. This chip handles modulation, demodulation, and data storage. * **Embedded Antenna Structure:** Unlike traditional RFID tags that require a large copper coil, the MA78TAG-R uses the **PCB (Printed Circuit Board) traces** of the host device as part of its antenna system. * **Impedance Matching:** The internal circuitry is tuned to match the impedance of standard PCB ground planes, allowing it to function even when mounted on metal-heavy environments (with proper design). --- ### 3. Functional Advantages * **Miniaturization:** Its SMD form factor allows it to be mounted using standard pick-and-place machinery during the PCBA assembly process. * **Durability:** Being an SMD component, it is highly resistant to environmental stressors compared to adhesive labels. * **NFC Compatibility:** Since it follows ISO 15693, it can be read by most NFC-enabled smartphones, making it useful for consumer-facing authentication. --- ### 4. Common Applications 1. **Electronics Traceability:** Tracking a PCB throughout its manufacturing lifecycle. 2. **Anti-Counterfeiting:** Embedding the tag into high-end consumer electronics or medical devices to verify authenticity. 3. **Configuration Management:** Reading/writing configuration data to a device even when it is powered off.