RXK04 key fob. Colors and personalization are specified for your order.
RXK04 key fob with MIFARE DESFire EV1 2K
RXK04 key fob configured with MIFARE DESFire EV1 2K. A 2 kB DESFire EV1 IC for applications requiring authenticated transactions and a configurable file structure.
Printing, encoding, quantity and delivery are confirmed in the approved order specification.
The MIFARE DESFire EV1 2K configuration.
An ABS key fob measuring 40 × 33 × 4 mm and weighing 6 g. Choose the IC, enclosure color and personalization for access, membership or identification systems. Silkscreen printing, laser engraving and printed numbering options support a consistent credential program.
A 2 kB DESFire EV1 IC for applications requiring authenticated transactions and a configurable file structure.
Physical specifications
| Specification | Details |
|---|---|
| Material | ABS |
| Temperature | -10˚ to 50˚ Celsius |
| Dimensions | 40x33x4 mm |
| Weight | 6.00 g |
| Available Colors | Red, Blue, Green, Grey, Black, Yellow |
| Printing Options | Silkscreen, Laser Engraving |
| Number Printing Options | Laser, Inkjet |
| Packing Details | 2000 pieces per carton; Carton size: 50×24×15 cm / Carton weight: 14kg per carton. |
Manufacturing specifications are confirmed for the selected size, materials and finishing options in your approved order. IC temperature or security ratings do not establish finished product ratings.
MIFARE DESFire EV1 2K IC specifications
| Specification | Details |
|---|---|
| Semiconductor IC | MIFARE DESFire EV1 2K |
| Interface / protocol | ISO/IEC 14443 Type A, parts 1–4 · NFC Type 4 |
| Nominal memory | 2 kB |
| RF data rates | 106, 212, 424 and 848 kbit/s |
| Identifier | 7 byte UID; optional random identifier |
| Cryptographic options | DES, 2K3DES, 3K3DES and AES 128 |
| Files per application | Up to 32 |
| Application capacity | Up to 28 applications |
Memory and protocol values describe the IC. Actual read performance depends on the finished antenna, enclosure, reader and operating environment.
Define application identifiers, file types, access rights and key provisioning with the system integrator. Available application space depends on the file system and configuration.
Compatibility modes do not remove the need to validate reader firmware, authentication and transaction behavior.
Integration and qualification
Specify the application identifiers, file structure, authentication algorithm, key versions and access rights. Validate a personalized sample with the installed reader firmware and issuing software. A successful UID read is not proof that an application transaction will work.
Check key ring attachment, handling and scan orientation. Assess the fob alongside keys and other metal objects under normal use.
Approve an encoded sample in the finished application before volume production. Define acceptance criteria for identification, memory access, printed data and repeated operation.
Define your production requirement.
Reference RXK04 key fob with MIFARE DESFire EV1 2K in your enquiry, together with the following details.
| Specification | Details |
|---|---|
| System | Reader manufacturer and model, application software and existing credential specification |
| Configuration | IC part number and memory variant, product size, color and required finish |
| Personalization | Print artwork, numbering format, encoding layout and verification requirements |
| Supply | Initial quantity, repeat volume, sample quantity, destination and required delivery date |
| Acceptance | Sample approval criteria and any required material, compliance or traceability documents |
Minimum order quantity, current availability, lead time and pricing are confirmed for the complete configuration. Production availability is confirmed with your quotation.
Build your quotation briefTechnical references
Semiconductor documentation defines IC capabilities. Our approved product specification defines the finished Roxtron product.
