21*11mm NFC Wet Inlay | The Miniaturized Smart Core for Seamless Integration
Product Overview
The 21*11mm NFC Wet Inlay is an ultra-compact, unencapsulated smart core module for NFC/RFID applications. It integrates an NXP NTAG213 chip with a precision-etched aluminum antenna on a flexible PET substrate, pre-coated on the back with high-performance pressure-sensitive adhesive. It is a fundamental component designed specifically for product embedding, automated labeling, and large-scale IoT integration. Unlike finished labels, a wet inlay is a semi-finished product, allowing clients to further encapsulate it within various materials (like paper, plastic, textiles, synthetic leather) according to their product needs, enabling completely hidden smart interactivity. Its miniature size allows integration into products with extremely limited space, such as smart cards, wearables, small consumer electronics, and precision instrument packaging, making it one of the smallest intelligent units for enabling the “Internet of Things.”
🔬 Ultra-Miniaturized Design
Compact Size: A rectangular footprint of 21mm x 11mm, with an area of only about 231mm², taking up minimal internal product space.
Thin & Flexible: Total thickness (including adhesive) is typically less than 0.3mm, bendable to conform to curved surfaces or wearable product structures.
Covert Integration: Can be fully encapsulated beneath a product’s surface material, maintaining aesthetics and enabling “invisible” intelligence.
🏭 Built for Automated Production
Reel Packaging: Supplied on reels, with standard packs like 1000 pcs/roll or 2000 pcs/roll, perfectly compatible with high-speed automatic label applicators, laminators, and assembly lines.
Pre-coated High-Performance Adhesive: The backing adhesive offers strong initial tack and lasting bond strength, ensuring accurate placement during automated pick-and-place and reliable adhesion afterward.
Simplified Supply Chain: Clients avoid the complexity of sourcing chips, antennas, and adhesive for assembly. We provide a ready-to-use standard smart module, significantly lowering production barriers and total cost.
Application Scenarios:
Smart Cards & Tickets: Embedded within the layers of membership cards, access cards, transit cards, or event tickets for contactless identification and interaction.
Wearable Devices: Integrated into smartwatch bands, clothing labels, or sports gear for identity verification, data exchange, or authentication.
Consumer Electronics Packaging: Applied inside the packaging of smartphones, headphones, smart speakers, etc., to create an interactive unboxing experience where the “product is the info terminal.”
Premium Goods Anti-Counterfeiting: Hidden within the inner layers of luxury hang tags, wine bottle labels, or cosmetic boxes, providing brands with a hard-to-copy, one-item-one-code traceability solution.
Book & Document Management: Embedded within the covers of important archives, library books, or expensive textbooks for quick inventory and information linking.
Product Specifications
| Item | Specifications |
| Product Type | NFC Wet Inlay |
| Dimensions | 21.0mm (±0.2mm) x 11.0mm (±0.2mm) |
| Chip | NXP NTAG213 |
| User Memory | 144 bytes |
| Frequency | 13.56 MHz |
| Protocol | ISO14443 Type A |
| Read/Write Range | Typical 3-5 cm (depends on reader) |
| Substrate | White/Clear PET |
| Antenna Material | Etched Aluminum |
| Adhesive Type | Permanent Acrylic Pressure-Sensitive |
| Total Thickness | ≤ 0.3 mm (with adhesive) |
| Packaging | Reel, common specs: 1000 pcs/roll, 2000 pcs/roll |
| Operating Temperature | -25°C ~ +70°C |
Why Choose Our 21*11mm Wet Inlay?
✅ Perfect Balance of Size & Performance: Offers a very usable read/write range despite extreme miniaturization, thanks to antenna optimization.
✅ Ready-to-Use Industrial Module: Pre-coated adhesive and reel packaging mean it’s ready for your automated production line right out of the box, drastically shortening your product development cycle.
✅ Consistent Batch Quality: Fully automated production and strict electrical testing ensure highly consistent performance across every reel, safeguarding your product yield.
✅ Strong Scalability: In addition to NTAG213, we can provide NTAG215/216 wet inlays in the same size to meet higher data capacity requirements.
✅ Expert Technical Support: We provide integrators with antenna performance data, lamination process advice, and chip data initialization support.
Request Samples & Bulk Quote
We are a professional NFC/RFID inlay manufacturer focused on providing customized smart core module solutions for various industries. The 21*11mm NTAG213 Wet Inlay is one of our mature standard products, known for stable performance and ready availability. We welcome inquiries from electronics manufacturers, smart card factories, packaging/printing companies, and system integrators. Contact us to obtain reel samples for production line testing. We support customization of antenna size, chip model, and packaging.
Brand: YKL E-cardlink
Positioning: Your Core Module Supplier for the Intelligent IoT Era
