Proximity
MIFARE® DESFire® EV2 chips are made by the trusted chip manufacturer NXP Semiconductors, and are the most popular NFC Type 4 chips (chips for secure transactions). They operate on a frequency of 13.56 MHz and are compatible with the RFID standards ISO/IEC 14443-4A/B and ISO/IEC 7816.
They have a 7-byte long chip Unique ID number (UID) and 2, 4, or 8 Kbytes of data. MIFARE DESFire EV2 chips use multiple hardware cryptographic engines for secure transactions. The data retention time for these chips is 25 years.
MIFARE DESFire EV2 chips are typically used for:
- Secure NFC applications
- Secure Access control and Ticketing
- Public transportation
- Cashless vending
- Micro Payments.
Our plastic stickers with a MIFARE DESFire EV2 2K chip have a storage capacity of 2 Kbytes, are waterproof, have a diameter of 38 mm, and they are approximately 0.3 mm thick. The stickers are bright white, without numeration or other printed elements.
The top layer is a made form white plastic material (PET), in between there is a layer with a chip and at the bottom there is an adhesive layer with a strong 3M glue type 467MP 200MP, which is highly viscous adhesive, resistant to high temperature and humidity, and will make sure this sticker will stay in place for a long time.
They can be used on glass, wood, a wall, or other plastic materials. They are not suitable for use on metallic materials like metallic door frames, promotional boards, electronic equipment with metallic cases, etc.
Reading test for Plastic stickers with a MIFARE DESFire EV2 2K chip
We tested the plastic stickers with a chip MIFARE DESFire EV2 2K stickers with different kinds of readers and measured the reading distances. This is not an official test, but it was made to provide information about what reading distances you may expect with your application. RFID reader Reading distance Syris RD300-H1-G 5 cm ACR1252U-M2 3 cm Syris RD200-M1 1,5 cm R80U 1 cm
The reading distance between the RFID transponder and the reader is affected by many different factors, like the size of the antennas and quality of the chips, the interferences of metal, and electromagnetic signals, etc.
Technical specifications for MIFARE DESFire EV2 2K stickers:
Chip manufacturer: NXP Semiconductors
Chip: MIFARE DESFire EV2,
ISO/IEC standards: 14443-4A/B and ISO/IEC 7816
Memory size: 2 Kbytes of data
Security: DES and AES hardware cryptographic engine for secure transactions, 7-byte long preprogrammed chip Unique ID number
Operating frequency: 13.56 MHz
Reading distance: up to 10 cm (usually up to 5 cm)
Sticker diameter: 38 mm
Thickness: approx. 0.3 mm
Material: plastic (PET)
Printing options: custom made DESFire stickers are available upon request
These NFC stickers are not suitable for use on metallic materials.
Official technical documentation for MIFARE DESFire EV2 chips and software tools are available here:
https://www.nxp.com/products/rfid-nfc/mifare-hf/mifare-desfire/mifare-desfire-ev2:MIFARE_DESFIRE_EV2_2K_8K
If you need a larger quantity or you are a reseller/integrator do not hesitate to contact us and we will be happy to help you.
MIFARE®, MIFARE CLASSIC®, DESFire®, ICODE® are registered trademarks, owned by NXP B.V. There is no affiliation between NXP B.V. and Mave d.o.o. (rfidspecialist.eu)