RXK04 key fob. Colors and personalization are specified for your order.
RXK04 key fob with EM4200
RXK04 key fob configured with EM4200. A factory programmed read only IC for low frequency identification systems.
Printing, encoding, quantity and delivery are confirmed in the approved order specification.
The EM4200 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 factory programmed read only IC for low frequency identification systems.
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.
EM4200 IC specifications
| Specification | Details |
|---|---|
| Semiconductor IC | EM4200 |
| Interface / protocol | EM4100 / EM4102 compatible protocol options |
| IC frequency range | 100–150 kHz; finished product tuning must be specified |
| Code storage | Laser programmed ROM |
| ROM options | 64, 96 or 128 bits |
| Encoding options | Manchester, Biphase, PSK or FSK; variant dependent |
| Power | Passive operation from reader field |
Memory and protocol values describe the IC. Actual read performance depends on the finished antenna, enclosure, reader and operating environment.
Match the complete part number, reader command set and data format before qualification. Frequency alone does not establish interoperability.
Integration and qualification
Validate the modulation, bit rate and identifier format with the installed low frequency reader. NFC phones do not read 125 kHz credentials. For programmed formats, agree a sample identifier and confirm how the host system interprets it.
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 EM4200 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.
