TK4100 RFID Card
- Low-cost 125KHz Contactless Solution
- Compatible with most RFID access control systems
- Read-only proximity card with 64-bit unique ID
- Ideal for door access, attendance tracking, and security systems
- Durable PVC card body, printable and customizable
The RFID TK4100 card is a widely adopted low-frequency proximity card, operating at 125KHz and offering a cost-effective and reliable access control solution. These TK4100 cards are read-only, ensuring consistent UID integrity and secure data handling. Designed in a standard CR80 size, the card can be printed with custom logos, photos, or barcodes, making it suitable for corporate ID cards, employee badges, and membership access. With no internal power source required, it provides a contactless user experience ideal for daily operations.
- Operates at 125KHz frequency
- 64-bit read-only unique ID
- CR80 standard size (credit card format)
- No battery required passive card
- Printable surface for branding or ID purposes
- Durable and water-resistant for long-term use
Physical Characteristics
- Product SKU: Zeal-4108
- Material: PVC / PET / ABS (optional)
- Size: CR80 (85.6 x 54 mm)
- Thickness: 0.84 ± 0.04 mm
- Weight: Approx. 5.8g
- Card Structure: Laminated proximity card
- Antenna Type: Copper coil
RFID Core Technology
- Chip Model: TK4100
- Frequency: 125 KHz
- Protocol: ISO/IEC 7815 compatible (EM format)
- UID Type: 64-bit unique read-only ID
- Memory: N/A (UID only)
- Data Retention: 10 years
- Write Endurance: Read-only
Performance & Security
- Read Distance: 2 – 10 cm (depending on reader)
- Transmission Rate: 106 kbit/s
- Anti-collision: Not supported
- Security: Fixed UID, read-only format prevents rewriting
Environmental & Durability
- Operating Temperature: -25°C to +70°C
- Storage Temperature: -40°C to +85°C
- Humidity: 20% ~ 90% RH
- Durability: Waterproof, dustproof, anti-static, scratch-resistant
- Bending Test: 100,000 times
Packaging & Order Info
- Minimum Order Quantity: 500 pcs
- Inner Box Packing: 200 pcs/box
- Outer Carton Options: 1000 / 3000 / 5000 pcs
- Carton Size & Weight: Customizable
- Lead Time: Sample in 3 days, bulk 7–15 days
- Customization: Printing, UID encoding, punching, variable data
Please Note: Customization options may vary slightly depending on the card material. If you can’t find what you want from the following option, feel free to contact us and let us know your needs. We’ll get back to you ASAP after confirming with our engineers. And we will do our utmost to customize the card you desire.
Printing Method
Here are 3 professional printing techniques to bring your designs to life.- Silkscreen Printing: ideal for printing logos and icons. The colors are pure and it is suitable for projects that require bright colors, large areas of solid color, and high-contrast patterns.
- UV Printing: Bright colors, scratch-resistant, suitable for complex patterns and multi-color printing.
- Offset Printing：High color reproduction accuracy, suitable for complex multi-color designs.
Surface Finishes
We provide the following surface finishes to cater to different branding styles.
- Glossy Finish: Surface is smooth and shiny, with rich and bright colors.
- Matte Finish: Soft and non-reflective, with a premium touch.
- Frosted Surface: Similar to frosted glass, it is anti-slip and anti-fingerprint.
- Spot UV: Glossy coating on selected areas for emphasis and visual contrast.
- Hot Stamping (Gold/Silver): Shiny metallic effect, enhancing card’s texture and brand equity.
Functional Add-ons
Improve usability with functional features to match your application needs.
- Magnetic Stripe: Commonly used for access control, membership, or payment systems.
- Signature Panel: Ideal for cards requiring a signature space, such as staff or banking cards.
- Scratch-off Panel: Covers PINs or promotional codes for privacy and marketing.
- Hole Punch: Allows easy attachment to lanyards or clips, useful for ID badges.
Security & Personalization
Enhance brand exclusivity and anti-counterfeiting features for premium applications.
- Variable QR Code / Barcode: Custom unique codes for access, tracking, marketing, loyalty programs, etc.
- Serial / Embossed Numbers: Unique serial number per card, variable data.
- Laser Engraving Number: Non-erasable, enhance anti-counterfeiting level.
- Hologram: Enhance brand trust and provide strong anti-counterfeiting protection.
Custom Size
Besides standard CR80 cards (85.5×54mm), we also allow you to customize the shapes, thickness (0.2 – 0.8mm), and dimensions according to project needs.Custom RFID Chip
Choose the RFID chips by protocol, capacity, and functionality. We have chip with LF (125KHz), HF (13.56MHz), and UHF (860–960MHz) frequencies. Other chips are also available upon request.
Chip Type Protocol Capacity Anti-collision Function Frequency TK4100 / No No Read Only 125KHz EM4200 / No No Read Only 125KHz EM4305 / 512 bit No Read/Write 125KHz T5577 / 330 bits No Read/Write 125KHz NTAG® 213 ISO14443A 180 byte No Read/Write 13.56MHz NTAG® 215 ISO14443A 540 byte No Read/Write 13.56MHz NTAG® 216 ISO14443A 924 byte No Read/Write 13.56MHz MIFARE® Classic® 1K ISO14443A 1 KB No Read/Write 13.56MHz MIFARE® Classic® 4K ISO14443A 4 KB No Read/Write 13.56MHz MIFARE® Plus® S 1K ISO14443A 2 KB / 4 KB No Read/Write 13.56MHz MIFARE Ultralight® EV1 ISO14443A 48 byte No Read/Write 13.56MHz MIFARE Ultralight® C ISO14443A 144 byte No Read/Write 13.56MHz ICODE® SLIX ISO15693 896 bit Yes Read/Write 13.56MHz Alien H3 ISO18000-6C 512 bit Yes Read/Write 860–960MHz
General RFID TK4100 Questions
What is a TK4100 RFID card?
It’s a contactless card with a 125 kHz read-only RFID chip, perfect for access control, time tracking, and identification. It arrives blank, without pre-printed designs or encoded data, ready for your customization.
What are the main uses for these cards?
They’re ideal for B2B applications like securing office or school entry, tracking employee attendance, managing memberships, or enabling parking access. They’re also used in retail for loyalty programs or basic identification.
How does the TK4100 compare to the EM4100?
The TK4100 is fully compatible with EM4100 protocols, offering the same 64-bit read-only memory and 40-bit unique ID. It’s often more cost-effective due to optimized manufacturing, making it a go-to for low-security needs.
Are these cards suitable for high-security environments?
Yes, for their read-only, non-encrypted design. For higher security, take MIFARE into consideration.
Ordering and Durability Questions
What materials are these cards made from?
They’re crafted from durable PVC or PET with a laminated finish, you could also customize the material you like.
What are the size and weight of these cards?
They are CR80 standard size (85.6 × 54 mm), 0.8 mm thick, and weigh about 5.8g, matching typical credit card dimensions.
How durable are these cards?
They’re waterproof, dustproof, and bend-resistant, operating reliably from -20℃ to +60℃ and storing safely from -20℃ to +65℃ in 20%–90% RH humidity.
How long do these cards retain data?
The pre-programmed ID lasts at least 10 years.
What’s the minimum order quantity (MOQ)?
The MOQ is 500 cards, packed 200 per box, with outer cartons of 1000 or 2000 cards.
How long does it take to receive an order?
Samples ship in 5–7 days, and bulk orders take 7–20 days, depending on customization and printing needs.
Can I return these cards?
Unused cards in original packaging can be returned within 30 days. Printed or customized cards are non-returnable unless defective.
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