A normal NFC chip, such as the NTAG213, NTAG215 or iCODE SLIX can store a URL (web link) in it's memory. When scanned, it presents this link to the scanner (a mobile phone for example). It presents the same link every time, in a similar way to a QR Code.
An authentication NFC chip, such as the NTAG424, works differently. When the URL is encoded onto the tag, a secret key is also encoded, along with some other settings. When the tag is scanned, it presents the URL but also a unique code which is generated using this secret key. This unique code changes on every scan and can be verified using an authentication server which will hold the same secret key.
Note that the full name for the NTAG424 chip is the NTAG424 DNA. We usually just refer to it as the NTAG424 chip.
As this code is unique for each scan, these NTAG424 NFC tags can be used for anti-counterfeit and authentication. It makes them extremely powerful as they can be used to ensure that the tag is the exact tag that you expect it to be. All from a simple scan with a mobile phone (no special app required).
Authentication chips have a huge range of use cases from the obvious protection of luxury goods, artwork and pharmacuiticals to supply chain security, document authentication, ticketing, proof of physical presence, secure log-on and more.
While standard NFC tags can be easily encoded with any of the free mobile phone applications, encoding NTAG424 chips is substantially more complicated. You have four choices :
For more information on buying and using NTAG424 or other authentication chips, contact us or read more about NFC tag authentication.
Seritag Product Code : ST1026
Current Stock : 200 (need more?)We can typically supply additional stock of this product within 3 weeks. However, we very strongly advise you to contact us for exact production schedules for non-stock items before ordering.
| Price per Card : | |
| 1 - 99 | $2.93 |
| 100 - 199 | $2.60 |
| 200 - 249 | $2.34 |
| 250 - 499 | $2.25 |
| 500 - 999 | $2.18 |
| 1,000 - 1,999 | $2.14 |
| 2,000 - 4,999 | $2.06 |
| 5,000 - 9,999 | $1.93 |
| 10,000 + | Contact Us |
| (price excludes VAT)Show prices with VAT |
(excludes VAT)
| NFC Chip | NTAG424 |
| Interface Specification | ISO 14443 / 13.56 MHz / NFC Forum Type 4 |
| Total Memory | 416 Bytes (User) |
| Data Retention | 50 years (estimated) |
| Metal Surfaces (?) | Not suitable |
| Unique Print (?) | Not Available |
| Size | 54mm x 85.6mm |
| Thickness | 0.86 mm |
| Construction Material | PET |
| Weather Resistance | Very High |
| Temperature Limits | 120C 72 hours / 150C 4 hours |
| Delivery Format | Single Units |
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