Ultra-thin flexible NFC tags starting from 5mm. Copper-etched FPC antenna with ISO 14443A/15693 protocol, engineered for smart jewelry, wearables, medical devices, and compact product integration where space is measured in millimeters.
Small FPC NFC tags (Flexible Printed Circuit NFC Tags) are ultra-thin, high-performance NFC solutions designed for compact, durable, and specialized applications. Made with FPC and high-precision copper-etched antennas, these tags deliver waterproofing, high-temperature resistance, and superior signal stability — highly resilient in industrial environments where standard NFC stickers simply cannot keep up.
What sets these tags apart is their ability to survive environments that destroy ordinary NFC stickers. With an operating range from -20°C to +180°C, they withstand industrial heat, medical sterilization cycles, and outdoor extremes without delaminating or losing read performance. The semi-flexible FPC body curves with product contours, and an optional anti-metal backing eliminates signal loss on metal surfaces — making these the most versatile compact NFC tags in our product line.
Compared to traditional PVC or paper-based NFC tags, these FPC stickers are ideal for seamless integration into injection-molded plastics, smart toys, smart jewelry, NFC patches for clothing and hats, medical tubes, fingernails, and other compact or embedded applications. From embedding invisibly inside luxury packaging for brand authentication to tagging industrial equipment in high-temperature environments, they are purpose-built for projects where size, durability, and flexibility are non-negotiable. Orange, black, and white finishes aid visual identification during assembly, and full pre-encoding support means your tags arrive ready to deploy — no programming required on your end.
Key Features
Mini Size 5mm/6mm
Starting from just 5x5mm, these are the smallest FPC NFC tags available. Fits inside smart rings, fingernail patches, and injection-molded components where no other NFC tag can go.
Extreme Temperature Resistance
Operates from -20°C to +180°C. Survives industrial heat, medical sterilization, and outdoor extremes — no standard NFC sticker can match this range.
Ultra-Thin Flexible Construction
Copper-etched FPC antenna on a semi-flexible substrate that conforms to curved and irregular surfaces without cracking or delaminating. Perfect for tight enclosure integration.
Optional Anti-Metal Backing
Add a ferrite shielding layer for direct mounting on metal surfaces. Zero signal loss on equipment housings, metal enclosures, and machinery — same compact footprint.
Multiple Sizes & Custom Shapes
Standard options from 5x5mm to 20mm in round, square, and rectangular shapes. Custom shapes including logo cutouts and irregular outlines available for OEM projects.
Full NFC Chip Lineup
NTAG213, 215, 216, NTAG424 DNA, ICODE SLIX, and F08 — choose the exact memory, security, and protocol for your application needs.
Embed inside rings, bracelets, and pendants at 5–8mm sizes — discreet NFC with no visible tag, all the functionality.
Medical Device Tracking
Bond to medical tubes and equipment housings — survives sterilization temperatures and clinical handling without delaminating.
Wearables & Fitness Trackers
Integrate into watch bands, fitness patches, and smart garments — ultra-thin profile sits flush against skin, no discomfort.
Industrial Asset Management
Mount on metal machinery and tools with anti-metal backing option — scan for maintenance logs and inventory on metal surfaces.
Anti-Counterfeit & Brand Authentication
Embed in luxury packaging, cosmetics caps, and apparel tags — invisible NFC for product authenticity verification and consumer engagement.
Injection-Molded Product Integration
Embed directly into plastic components during molding — permanent, tamper-proof NFC with no external sticker required.
Why Choose RFIDSU?
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Years in RFID Tag Manufacturing
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Countries Served
OEM
Full OEM/ODM Custom Service
Free
Samples Available on Request
RFIDSU is a specialized FPC NFC tag manufacturer with 10 years of RFID industry experience. We design and produce ultra-small flexible NFC stickers for wearables, medical devices, industrial applications, and smart product integration. From standard 5mm tags to fully custom shapes and sizes, our products are exported to over 50 countries with complete OEM/ODM support.
Customization Options
From chip selection to shape and anti-metal backing, our FPC NFC stickers are built to your exact project specifications with full OEM/ODM support.
Chip Selection
Match chip memory, security level, and protocol to your application. From cost-effective NTAG213 to encrypted NTAG424 DNA — we configure the right chip for your use case.
Size & Shape
Any dimension from 5mm upwards in round, square, or rectangular profiles. Fully custom shapes including logo cutouts and irregular outlines for unique product integrations.
Anti-Metal & Adhesive
Add ferrite shielding for metal-surface mounting with zero signal loss. Choose 3M permanent adhesive for rugged environments or non-adhesive backing for embedding.
Color & Visual ID
Orange, black, or white for easy color-coded identification during production assembly. Custom colors available for brand matching on volume orders.
Printing & Text Marking
Black or white text printing for serial numbers, UID codes, and barcodes — essential for inventory traceability across high-volume NFC deployments.
Pre-Encoding & Packaging
Arrive with pre-programmed URLs, serial numbers, TXT, or encryption — plus a UID excel list for inventory management. Individual bags or sheet format to match your workflow.
Frequently Asked Questions
What is the smallest size available?
Our standard minimum is 5mm. For ultra-compact projects like smart rings and fingernail tags, custom sizes can be discussed — contact us with your dimensional requirements.
Can these tags survive high-temperature environments?
Yes. The FPC construction operates from -20°C to +180°C and stores at -55°C to +125°C — suitable for industrial equipment, medical sterilization, and automotive applications that destroy standard NFC stickers.
Can I use these on metal surfaces?
Yes, with the optional ferrite anti-metal backing layer. This shields the antenna from metal interference and restores full read performance on equipment housings, machinery, and metal enclosures.
What chip options are available?
We offer NTAG213, NTAG215, NTAG216, NTAG424 DNA, ICODE SLIX, MIFARE Ultralight, and Fudan F08 — covering everything from basic URL tags to encrypted NFC for secure access control and authentication.
Can you pre-encode data before shipping?
Yes. We pre-encode serial numbers, URL links, TXT, and encryption, and provide a UID excel list for inventory tracking. Your tags arrive ready to deploy — no programming needed on your end.
What packaging formats are available?
Standard packaging is 100 pcs/bag for individual handling. Sheet format is also available for automated pick-and-place assembly. Custom packaging options can be discussed for volume orders.
Need NFC That Fits in 5mm?
Get free samples, request a custom quote, or ask our NFC specialists about FPC tag sizes, chip options, and high-temperature applications.
