RFID electronic tags are a crucial component in RFID technology. It is believed that many people have seen and used conventional electronic tags. However, what do electronic tags that can only be applied in special scenarios look like, and what characteristics and precautions do they have? RFID special tags are mainly designed for harsh environments, special materials, or special application scenarios, and they undergo special treatments in terms of materials, packaging, antenna design, or chip functions.
The back of the tag is equipped with special wave-absorbing materials (such as ferrite sheets) or designed with a cavity structure.
The antenna design has been specially optimized to enable the tag to work normally on or near metal surfaces.
When a regular RFID tag is attached to a metal surface, the metal will reflect/interfere with electromagnetic waves, resulting in the tag being unreadable or a sharp reduction in reading distance.
Directly attached to metal surfaces (e.g., machine tools, equipment enclosures, tools, metal shelves, containers).
Embedded inside metal objects (e.g., tool handles, metal asset plates).
Environments close to metal (e.g., item management on metal shelves).
The tag chip and antenna are encapsulated using special high-temperature resistant materials (such as polyimide, ceramics, special epoxy resin, PEEK, and metal encapsulation).
The chip itself must also have a high temperature resistance rating.
Processes requiring high-temperature sterilization (e.g., tracking of medical surgical instruments, supplies in biological laboratories).
High-temperature production environments (e.g., automotive manufacturing painting lines, drying lines, tire vulcanization, casting, glass manufacturing).
High-temperature storage or usage environments (e.g., near engine compartments, near industrial furnaces).
Typically, the temperature resistance range is from 120°C to 250°C or even higher (ceramic tags can withstand up to 800°C).
Adopt a fully sealed packaging method (such as injection molding, laminated packaging, epoxy potting).
Use hydrophobic materials or special coatings.
Some tags (especially UHF tags) have their antenna designs optimized for liquid environments (water or water-containing substances), as liquids strongly absorb UHF signals.
Direct contact with liquids (e.g., beverage bottles, cosmetic bottles, medicine bottles).
High-humidity environments (e.g., cold storage facilities, bathroom equipment, outdoor areas).
Scenarios requiring frequent cleaning or soaking (e.g., animal ear tags in animal husbandry, food processing equipment).
Management of liquid items themselves (special attention should be paid to the antenna design and attachment position of UHF tags).
The chip and antenna are designed to be extremely compact.
The overall size is extremely small (may be only a few millimeters square).
Applications with extremely limited space (e.g., tracking of small electronic components, jewelry management, precision instruments).
Scenarios requiring concealed installation (e.g., embedding in PCB boards, anti-counterfeiting of valuable items).
Locations with high aesthetic requirements where the tag is not expected to be conspicuous.
Adopt special adhesives (e.g., high-tack adhesives, frangible substrates, VOID materials).
Equipped with self-destruct structures (e.g., antenna breakage when removed, display of the "VOID" mark).
The purpose is to leave obvious traces or render the tag inoperable when it is illegally removed or an attempt is made to remove it.
Asset anti-theft (e.g., IT equipment, laboratory instruments).
Product anti-counterfeiting and anti-diversion (e.g., high-end goods, electronic products).
Sealing and anti-counterfeiting of important documents/certificates.
Scenarios where it is necessary to ensure the binding relationship between the tag and the item.
1.Application Environment:This is the most crucial factor. Clarify the major challenges the tag will face (such as metal surfaces, high temperatures, liquids, etc.).
2.RFID Reading and Writing Performance Requirements:What reading distance is required?What reading speed is needed?How many tags need to be read simultaneously?
3.Tag Size and Shape Constraints:What is the available installation space?Is the surface flat or curved?
4.Attachment Method:Will it be adhesion, riveting, embedding, or hanging?
5.Expected Lifespan:How long does the tag need to function?
6.Cost Budget:The cost of special tags is usually much higher than that of ordinary paper tags.
When selecting special RFID tags, you can communicate with us in detail about your specific application scenarios and requirements, and we will definitely provide the most suitable recommendations for customized or standard products.
