Blank 125khz RFID Proximity EM4200 ID Cards

Blank 125kHz RFID proximity EM4200 ID cards are designed for low-frequency RFID identification, access control, membership systems, parking applications, and other proximity-based identification solutions. These contactless cards use a 125kHz RFID technology that can be supplied with compatible low-frequency chips such as TK4100, EM4200, or ATA5577, depending on the application and reader requirements.

The cards are available in standard credit-card dimensions and can be supplied as blank cards or customized with printing, numbering, barcodes, magnetic stripes, signature panels, and encoding services. PVC, PET, and ABS are available as material options, while glossy, matte, and frosted surfaces can be selected according to the intended application.

For projects that require a large quantity of low-frequency RFID cards, the cards can be customized to match existing access control, identification, parking, or membership systems. Before ordering, it is important to confirm the frequency, chip type, card format, and compatibility with the existing RFID reader.

What Is a 125kHz RFID Proximity Card?

A 125kHz RFID proximity card is a contactless identification card designed for low-frequency RFID systems. Instead of requiring physical contact with a reader, the card communicates with a compatible RFID reader when it is brought within the reader’s operating range.

This technology is commonly associated with proximity access control and identification systems where users need a simple card-based credential. Typical examples include employee access cards, student identification cards, parking credentials, membership cards, and building entry systems.

The term “125kHz RFID card” describes the operating frequency, while the chip determines the particular technology and data behavior of the card. Therefore, two cards that both operate at 125kHz should not automatically be assumed to be interchangeable.

For replacement projects, the existing reader and card technology should always be checked before selecting a chip.

Specifications

Blank 125khz RFID Proximity EM4200 ID Cards

Material: PVC, ABS,PET
Surface: glossy, matte, frosted
Size: 85.5*54*0.84mm, or customized
Frequency: 125khz

EM4200 RFID Cards vs. Other 125kHz Options

The product range can support several low-frequency chip options. The correct choice depends on the reader and the requirements of the existing RFID system.

The table is intended as a selection guide rather than a guarantee of interoperability. RFID systems can differ in communication protocol, encoding, reader configuration, and credential format. A card should therefore be selected according to the requirements of the target system rather than frequency alone.

125kHz vs. 13.56MHz RFID Cards

One of the most important considerations when purchasing RFID cards is the operating frequency. 125kHz low-frequency cards should not be confused with 13.56MHz high-frequency cards.

This distinction is especially important when replacing an existing card. A 13.56MHz MIFARE card cannot simply be replaced with a 125kHz EM4200 card because both cards are contactless. The reader must support the card’s frequency and relevant communication technology.

Standard RFID Card Size

The standard card size is 85.5 × 54 × 0.84 mm, which is similar to the dimensions commonly used for conventional plastic identification cards.

The familiar card format makes the cards suitable for wallets, card holders, employee badges, membership programs, and access credentials. Custom dimensions can also be discussed for applications that require a different card format.

When designing a custom card, the physical dimensions should be considered together with the internal RFID antenna and chip placement. The final design should leave sufficient space for the RFID inlay and any printing, numbering, barcode, or magnetic-stripe requirements.

RFID Card Materials and Surface Finishes

Different projects may require different card materials and surface finishes. The available material options include PVC, PET, and ABS.

The best material depends on the expected use, printing requirements, durability expectations, and card construction. For high-volume projects, the material should be confirmed together with the required card thickness and finishing process.

Custom Printing for 125kHz RFID Cards

Blank RFID cards can be customized with company branding, employee information, membership details, or other visual identification elements.

Available printing methods include CMYK full-color printing, digital printing, and silk screen printing. Depending on the project, additional personalization can include sequential numbering, barcodes, signature panels, and magnetic stripes.

A well-designed RFID card can combine contactless identification with visual identification. For example, an employee access card may contain a company logo and employee number on the front while using the embedded RFID chip for electronic identification.

For variable information such as individual card numbers, inkjet, thermal, or laser printing can be considered according to the project requirements.

RFID Card Encoding and Personalization

Encoding is an important consideration when purchasing RFID cards for an existing system. The card’s physical appearance alone does not determine whether it will work with a particular reader.

When requesting encoded cards, provide the supplier with the required card technology, reader information, numbering format, and encoding requirements where available. If the project is a replacement program, supplying details of the existing card or reader can help determine the appropriate product.

For large deployments, personalization can also be combined with printed card numbers or barcodes. This makes it easier to associate the physical card with a user, vehicle, employee, student, member, or other record in the management system.

Because different RFID systems use different data structures and credential formats, encoding requirements should be confirmed before mass production.

Reading Distance of 125kHz RFID Cards

The listed reading distance for LF and HF cards is approximately 3–10 cm, while actual performance depends on the reader and surrounding environment.

Several factors can influence the practical reading distance:

• RFID reader design and antenna size
• Reader operating power
• Card antenna construction
• Distance and orientation between the card and reader
• Metal surfaces or other nearby materials
• Installation conditions
• The specific RFID technology used

For this reason, the stated reading range should be treated as a reference rather than a guaranteed operating distance. A sample test with the intended reader is the most reliable way to confirm performance for a specific installation.

Applications of 125kHz RFID Proximity Cards

125kHz RFID cards are widely used where contactless identification is more convenient than physical keys, magnetic cards, or manual identification.

Common applications include:

The appropriate card technology depends on the reader infrastructure already installed. For replacement projects, matching the existing system should be the first priority.

How to Choose the Right 125kHz RFID Card

Choosing a 125kHz RFID card involves more than selecting a card that looks similar to an existing credential. The following checklist can help reduce compatibility problems.

1. Confirm the frequency.
Check that the existing reader operates at 125kHz/LF.

2. Identify the existing chip or technology.
If the current card is marked or documented as TK4100, EM4200, ATA5577, or another specific technology, provide that information when requesting a replacement.

3. Check the card dimensions.
The standard format is 85.5 × 54 × 0.84 mm, but custom dimensions may be available.

4. Decide whether encoding is required.
Some projects only need blank cards, while others require cards to be encoded or personalized.

5. Select printing and finishing options.
Consider full-color printing, numbering, barcode, magnetic stripe, signature panel, or other requirements.

6. Test compatibility before bulk production.
For an existing access control or identification system, sample testing can help verify that the proposed card works correctly with the target reader.

Blank RFID Cards or Pre-Printed RFID Cards?

The choice between blank and customized cards depends on how the cards will be deployed.

Blank cards can be useful when customers want to handle printing or personalization themselves. Pre-printed cards can be more convenient when a project requires consistent branding and centralized production.

RFID Card Manufacturing and Custom Orders

For larger projects, production capacity and customization options are important factors. The manufacturer lists a monthly capacity of up to 8,000,000 cards and a typical lead time of approximately 7–9 working days.

Bulk orders can be customized according to card material, surface finish, printing, numbering, barcode, magnetic stripe, and encoding requirements. Shipping options listed include express, air freight, and sea freight, while available price terms include EXW, FOB, CIF, and CNF.

Before production, customers should confirm the final artwork, card specifications, quantity, chip type, encoding requirements, and packaging details.

Quality and Certification

The product information lists ISO9001, SGS, RoHS, and EN71 among the available certifications or compliance credentials.

For a commercial project, the specific certification documents applicable to the ordered card configuration should be confirmed with the supplier. This is particularly useful when RFID cards are being purchased for regulated, institutional, or large-scale deployments.

Quality control should cover not only the printed appearance but also card dimensions, surface quality, chip consistency, antenna performance, and compatibility with the intended RFID reader.

Frequently Asked Questions About 125kHz RFID Cards

Are these cards compatible with every 125kHz RFID reader?

No. Operating at the same frequency does not automatically guarantee compatibility. The reader and card must support compatible RFID technology and data behavior. Always verify the existing system before ordering replacement cards.

Are EM4200 cards the same as TK4100 cards?

They are different RFID chip technologies, even though both can be used in 125kHz/LF applications. Whether one can replace the other depends on the reader and system configuration.

Can the RFID cards be printed with a company logo?

Yes. The listed customization options include CMYK full-color printing, digital printing, and silk screen printing.

Can each card have a unique number?

Yes. Numbering options include inkjet, thermal printing, and laser printing. Variable numbering can be combined with RFID identification for easier card management.

Can barcodes be added to RFID cards?

Yes. The available barcode options include Code 39, Code 128, and Code 13, subject to the final card specification.

What is the standard size of the RFID card?

The standard size is 85.5 × 54 × 0.84 mm. Custom dimensions can also be discussed for specific applications.

How far can a 125kHz RFID card be read?

The listed reference reading distance for LF/HF cards is approximately 3–10 cm. Actual performance depends on the reader, card, antenna, orientation, and surrounding environment.

Can these cards be supplied in bulk?

Yes. The listed production capacity is up to 8,000,000 cards per month, making the product suitable for high-volume identification and access-control projects.

What Information Should You Provide for a Custom RFID Card Order?

To receive an accurate quotation and specification, provide as much of the following information as possible:

• Required quantity
• RFID frequency
• Existing chip type, if known
• RFID reader model, if available
• Card dimensions and thickness
• PVC, PET, or ABS preference
• Glossy, matte, or frosted surface
• Artwork or logo
• Printing requirements
• Card numbering requirements
• Barcode requirements
• Magnetic stripe requirements
• Encoding requirements
• Packaging requirements
• Delivery destination and preferred shipping method

Providing these details at the quotation stage helps reduce uncertainty and makes it easier to select the correct RFID card configuration.

Why Choose Custom 125kHz RFID Proximity Cards?

A customized 125kHz RFID card can combine electronic identification with a professional physical card format. It can be produced with different materials, surface finishes, printing methods, numbering options, barcodes, magnetic stripes, and encoding services.

For organizations replacing existing proximity cards or deploying a new identification program, the most important consideration is compatibility with the target RFID system. Once the frequency and chip requirements are confirmed, card appearance, personalization, packaging, and logistics can be customized around the project.

If you are unsure whether TK4100, EM4200, ATA5577, or another 125kHz RFID technology is appropriate, provide the model of your existing RFID reader or the specifications of your current card. A sample-based compatibility check is recommended before committing to a large production quantity.

Request a Quote for 125kHz RFID Proximity Cards

For a quotation, send the required quantity, card size, material, chip type, printing requirements, and delivery destination. If the cards are intended to replace an existing credential, include the RFID reader model or current card specifications whenever possible.

This information allows the required 125kHz RFID proximity card configuration to be evaluated before production and helps ensure that the final cards meet both the physical and identification requirements of your project.

Feel free to contact us to discuss your needs.