Custom 13.56 MHz HF RFID Dry Inlays

DO RFID manufactures 13.56 MHz HF RFID dry inlays for converters, card manufacturers, ticket producers, smart-packaging suppliers and other B2B RFID projects. A dry inlay combines an HF or NFC chip, aluminium antenna and PET carrier without the pressure-sensitive adhesive and release liner used in a wet inlay.

This component format gives converters flexibility to laminate, encapsulate or build the RFID element into a finished label, card, ticket or custom product.

Dry inlay construction and available formats

The existing product offer includes aluminium antennas on PET with formats such as 26 × 12 mm, 22 mm round, 32 × 32 mm, 37 × 22 mm, 45 × 45 mm and 76 × 45 mm. Custom antenna or converted-product dimensions can be discussed for suitable volume projects.

Original environmental guidance lists approximately -25°C to +60°C operating and -40°C to +70°C storage. These values apply to the established inlay offer; finished-product performance also depends on adhesives, face stock, lamination, printing and the converting process.

Typical reading distance is approximately 3–10 cm, but antenna size alone does not determine performance. Reader or phone antenna geometry, chip sensitivity, alignment, substrate, metal, liquid and the final enclosure all affect coupling.

Select the chip by protocol and application

HF is a frequency band, not one universal protocol. ISO/IEC 14443 Type A chip families—including selected NTAG, MIFARE Ultralight, MIFARE Classic and DESFire products—serve different memory, security and application requirements. ISO/IEC 15693 products use a different air interface and must be matched to compatible readers.

For consumer phone interactions and smart packaging, an NFC Forum-compatible chip may be appropriate. For closed-loop access or ticketing, select the chip required by the existing system. Higher-security credentials need a security-focused IC and application design; they should not be represented by a basic identifier-only chip.

Dry inlay, wet inlay or finished label?

• Choose a dry inlay when a converter will add adhesive, face material or lamination.
• Choose a wet inlay when a peel-and-stick intermediate construction is needed.
• Choose a finished RFID or NFC label when printing, die cutting, encoding and roll presentation should be completed before delivery.

The final choice depends on the converting process, application surface, environmental exposure, roll direction, core size and encoding workflow.

Applications and buyer information

HF dry inlays can be integrated into NFC product labels, smart cards, event tickets, library or document products, membership credentials, pharmaceutical packaging and branded contactless experiences. Suitability depends on the selected IC and final construction.

For quotation or sample preparation, provide the required chip, antenna or finished size, target reader or phone, substrate, converting process, quantity, encoding requirement, roll direction and packing format. DO RFID can supply dry inlays or coordinate custom conversion for RFID and NFC product programs.