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White Blank 125 kHz EM4305 RFID Chip Cards
DAFTags white blank EM4305 RFID chip cards are contactless read/write cards for access control, time attendance, identification, and security projects. The EM4305 chip uses a 125 kHz low-frequency interface and supports ISO 11784/11785 data.
The card can be supplied blank or custom printed and encoded. Reader compatibility, printer compatibility, memory layout, write-protection settings, and card craft should be confirmed before production.
What Buyers Usually Need to Check
- 125 kHz cards do not work with 13.56 MHz readers: EM4305 cards are low-frequency credentials. The reader must support 125 kHz and the required ISO 11784/11785 data format.
- Blank cards still need a programming plan: The card can be encoded or write-protected, but the ID format, memory layout, user code, and passwords must be defined before production.
- Printer compatibility should be tested: The card is designed for card printers, but print quality depends on the printer model, ribbon, card material, and artwork. Test the exact setup before a bulk order.
- Read distance is not fixed: The supplier lists 1-28 cm, depending on the reader and antenna. Actual distance depends on the installed equipment and card position.
- Custom batches need one approved specification: Printing, numbering, barcode, magnetic stripe, and chip encoding should be confirmed together to avoid cards that do not match the access system.
What Is an EM4305 RFID Chip Card?
An EM4305 RFID chip card is a contactless smart card with a 512-bit read/write EEPROM. The memory is divided into 16 sectors of 32 bits each and supports password-protected read/write control.
The chip also includes a 32-bit unique ID and a 10-bit user code. It is intended for low-frequency identification systems, access control, attendance, and other non-financial applications.
Key Features
- EM4305 RFID Chip: 125 kHz low-frequency chip for compatible readers.
- 512-Bit Read/Write EEPROM: Memory is divided into 16 sectors of 32 bits.
- 32-Bit Password Protection: Supports read/write protection settings when configured by the system.
- 32-Bit Unique ID: Each chip includes a unique ID code for identification.
- Printable Card Surface: Designed for card printing, numbering, barcode, and custom artwork.
- Custom Encoding: Cards can be encoded according to the project data requirements.
Technical Specifications
| Product Model | DFTEM4305-1 |
| Product Type | White blank EM4305 RFID chip card |
| Chip | EM4305 |
| Frequency | 100-150 kHz, commonly used at 125 kHz |
| Protocol | ISO 11784/11785 |
| Storage Type | Read and write |
| Memory | 512-bit EEPROM, 16 sectors of 32 bits |
| Read / Write Protection | 32-bit password protection |
| Unique ID | 32-bit unique ID code |
| User Code | 10-bit user code |
| Reading Range | 1-28 cm, depending on reader and antenna |
| Minimum Working Distance | No less than 2 cm, depending on read/write equipment |
| Working Temperature | -20°C to +80°C |
| Read / Write Life | 100,000 times |
| Card Size | 85.5 x 54 mm or custom |
| Thickness | 0.86 mm or custom |
| Material Options | PVC, PET, or PETG |
| Surface Finish | Glossy |
| Print Options | Inkjet, thermal, offset, silkscreen, or digital printing |
Applications
- Access control systems
- Time attendance systems
- Employee or member identification
- Low-frequency RFID card programs
- Security and identification projects
- Custom printed cards for compatible 125 kHz systems
Reader and Frequency Compatibility
EM4305 cards require a reader that supports 125 kHz and the ISO 11784/11785 data format. They are not NFC cards and will not work with a 13.56 MHz reader.
Send the reader model, required ID format, memory use, and write-protection setup before ordering. Test a programmed sample in the actual system before approving bulk production.
Printing, Craft, and Encoding
The blank card is designed for custom card production. Confirm the printer, ribbon, artwork, and card material before printing a full batch.
- Barcode or QR code
- Card encoding
- Signature panel
- Magnetic stripe
- Hot foil
- Card numbering
Order Details to Confirm
- Reader model and supported frequency
- Required ID format, memory layout, and write protection
- Printer model, ribbon, and card material if printing in-house
- Printing, numbering, barcode, magnetic stripe, and encoding requirements
- Read distance with the installed reader
- MOQ, sample policy, packaging, and production schedule
FAQ
Will these cards work with our 125 kHz reader?
Only if the reader supports EM4305 or the required ISO 11784/11785 format. Send the reader model before ordering so compatibility can be checked.
Can the cards be printed in-house?
The card is designed for card printing, but print quality depends on the printer, ribbon, and card material. Test the exact setup before a full production run.
Are the cards supplied blank?
The standard product is listed as a white blank RFID card. Encoding and write protection can be discussed for the project.
How much memory does the card have?
The EM4305 chip has 512-bit read/write EEPROM, divided into 16 sectors of 32 bits, with a 32-bit unique ID and 10-bit user code.
Can the cards be encoded before shipment?
Encoding can be discussed. Provide the required ID format, user code, memory layout, and password settings for confirmation.
Can I request samples?
Sample availability depends on the current production schedule. Test the card with your reader and printer before approving bulk production.
Request a Quote
Send your reader model, required card data, printing details, quantity, and target use. We will confirm the suitable EM4305 card configuration and the next step for samples or production.
