Based on the technical specifications for the **MH71TAG-R**, this device is an **RFID Transponder (Tag)** typically utilized in industrial automation, logistics, and assembly line tracking. It is part of a larger ecosystem of identification systems (often associated with brands like Mitsubishi Electric or specialized sensor manufacturers). --- ## 1. Core Technical Specifications The MH71TAG-R is a passive electronic component designed to store and transmit data wirelessly when triggered by a reader. | Parameter | Description | | :--- | :--- | | **Technology** | RFID (Radio Frequency Identification) | | **Operating Frequency** | High Frequency (HF) - 13.56 MHz | | **Memory Type** | EEPROM (Electrically Erasable Programmable Read-Only Memory) | | **Communication Protocol** | ISO/IEC 15693 Standard | | **Form Factor** | Compact, ruggedized disc or cylindrical shape | --- ## 2. Key Electronic Components Internally, the MH71TAG-R consists of three primary electronic elements: ### A. Integrated Circuit (IC) Chip The "brain" of the tag. It manages the communication protocol, data encryption (if applicable), and memory storage. Because it is a **passive tag**, it does not contain a battery; it harvests energy from the electromagnetic field generated by the RFID reader. ### B. Antenna Coil A micro-copper coil or etched aluminum winding that surrounds the IC. * **Function:** It acts as an inductor. When it enters the 13.56 MHz field of a reader, it creates a small electric current via induction to power the IC. * **Data Transfer:** It uses "load modulation" to send data back to the reader. ### C. Encapsulation Material The electronic parts are encased in high-grade plastics (like PPS or Epoxy) to protect against: * High temperatures (often rated for industrial ovens). * Chemical exposure (oils, detergents). * Mechanical stress (vibration on assembly lines). --- ## 3. Operational Characteristics ### Memory Capacity Typically, these tags feature memory ranging from **112 bytes to 2KB**, partitioned into user-writable blocks. This allows for the storage of serial numbers, date codes, or manufacturing status. ### Read/Write Cycles * **Read:** Unlimited. * **Write:** Generally rated for 100,000 to 1,000,000 cycles. * **Data Retention:** Usually guaranteed for 10+ years. --- ## 4. Application Context The "R" suffix often denotes **RoHS Compliance** (Restriction of Hazardous Substances), meaning the electronic components are lead-free and environmentally safe according to EU standards. It is commonly paired with **Melsec** (Mitsubishi) PLC systems or dedicated RFID interface modules to track "Work-in-Progress" (WIP) on conveyors.