Mifare Classic 4K Cards

The MIFARE Classic 4K card is based on NXP MF1 IC S70, which is connected to a coil with a few turns and then embedded into plastic to form the passive contactless smart card. The communication layer (MIFARE RF Interface) complies with part 2 and 3 of the ISO/IEC14443A standard. The security layer sport the field proven CRYPTO1 stream cipher for secure date exchange of the MIFARE Classic family. It is contactless transmission of data and energy and no battery is needed. Being developed based on expanding the functions of MIFARE Classic 1K, the MIFARE Classic 4K increases memory size significantly. Therefore, it is the perfect solution for multi-application cards and allows more flexibility and convenience to users.

• Model : MIFARE Classic 4K
• Frequency : 13.56MHz
• Protocol : ISO14443A
• EEPROM Size : 4096 Byte
• Material : PVC
• Temperature : -20° – +50°
• Dimension : 85.6 × 54 × 0.86 ( mm )

Mifare Classic 1K Cards

The MIFARE Classic 1K card is based on NXP MF1 IC S50, which is connected to a coil with a few turns and then embedded into plastic to form the passive contactless smart card. The communication layer (MIFARE RF Interface) complies with part 2 and 3 of the ISO/IEC14443A standard. It is contactless transmission of data and energy and no battery is needed. MIFARE Classic 1K is fundamentally used for storing memories, while a simple security mechanism divides the memories into segments. Therefore, it is ideal for high volume transactions in all different applications, such as transport ticketing, time attendance solutions, car parking, road-tolling etc. It is mainly used in closed systems as fixed value tickets (e.g. weekly/monthly travel passes).

• Model : MIFARE Classic 1K
• Frequency : 13.56MHz
• Protocol : ISO14443A
• EEPROM Size : 1024 Byte
• Material : PVC
• Temperature : -20° – +50°
• Dimension : 85.6 × 54 × 0.86 ( mm )

RFID Vs Contactless Smart cards

The debate between RFID and smart cards technology is an ongoing one. There is no clear definition that describes RFID and smart cards, and at times these two terms are used interchangeably, due to lack of awareness, resulting in confusion between the differences.

Confusion is especially strong between contactless smart cards and RFID. The key issue that has given rise to this debate is the contact less interface and that too an RF (radio frequency) one. Both contactless smart cards and RFID use radio frequencies for communicating between the card and reader. The applications for which RF is used can be different for RFID and smartcards. RFID is mainly meant for applications within the supply chain, for track and trace. Contactless smart cards on the other hand are mainly meant for payments/banking, mass transit, government and ID, and access control.

RFID and smart cards both can be used in transit applications and most of the time they are used together to provide increased convenience to end users. An example of this would be the “Touch n go” cards in Malaysia used on toll ways. The Touch n Go card is a contactless smart card, but this card can be purchased with an additional RFID transponder (where the smart card will be inserted) so that the toll booth reader can read the cards from a greater distance than the 10cm limit restricted by smart card standards. Without the additional RFID transponder, the contactless Touch n Go smart cards can still be used, which means that the driver need to screen down their windshield to tap the card on the reader, instead of just driving through while the RFID transponder will be detected by the reader above the toll booths at a greater distance.


Contact and Contactless cards are plastic identification cards containing electronic memory and, in some cases, an embedded integrated circuit (known as chip cards). They are also sometimes called “smart ID cards” or “RFID cards” depending on the type of card and the smart card vendor.

Security conscious industries (like the medical profession) utilize smart cards to enhance patient privacy and prevent fraud. Smart cards are also able to provide strong security authentication for single sign-on (SSO) in large organizations, as well as identification, authentication, application processing and data storage. Through the use of smart cards, governments and regional authorities are able to reduce budgets tied to expensive processing, and security costs associated with standard license and identification cards.

Advantages of Contactless Cards

Contactless cards house an integrated circuit chip. They provide not only memory capacity, but computational capability as well. The self-containment of a contactless smart card makes it resistant to attack, as it does not depend upon potentially vulnerable external resources. Because of this characteristic, contactless smart cards are often used in different applications which require strong security protection and authentication. For added security, a contactless smart card can be paired with a mobile phone to restrict contactless transactions when the mobile device is not within range, preventing use of the card if stolen.

RFID Smart Card
Radio frequency identification (RFID) is a generic term that is used to describe a system that transmits the identity (in the form of a unique serial number) of an object or person wirelessly, using radio waves. An RFID system consists of an antenna and a transceiver, which read the radio frequency and transfer the information to a processing device, as well as a transponder (or tag), which is an integrated circuit on the plastic smart card containing the radio frequency circuitry and information to be transmitted. A subtype of RFID is NFC, which stands for near field communication, enabling two devices to communicate within a very short range. NFC cards add a layer of security to information transactions.

Smart card applications include: financial, identification, SIM card, public transit, computer security, school operations, healthcare and more.

Plastic Smart ID Cards Available:

AT AT24C01
AT AT24C02
AT AT24C16
AT AT24C64

Contactless RFID
FM FM1302T
ID TK4100
MIFARE? Classic
MIFARE Ultralight?

Knowledge Of contactless IC card

Knowledge Of contactless IC card
A contactless smart card is a card in which the chip communicates with the card reader through an induction technology similar to that of an RFID (at data rates of 106 to 848 kbit/s). These cards require only close proximity to an antenna to complete a transaction. They are often used when transactions must be processed quickly or hands-free, such as on mass transit systems, where a smart card can be used without even removing it from a wallet.

The standard for contactless smart card communications is ISO/IEC 14443. It defines two types of contactless cards (“A” and “B”) and allows for communications at distances up to 10 cm. There had been proposals for ISO/IEC 14443 types C, D, E, F and G that have been rejected by the International Organization for Standardization. An alternative standard for contactless smart cards is ISO/IEC 15693, which allows communications at distances up to 50cm.

Examples of widely used contactless smart cards are Taiwan’s EasyCard, Hong Kong’s Octopus card, Shanghai’s Public Transportation Card, South Korea’s T-money (bus, subway, taxi), London’s Oyster card, Beijing’s Municipal Administration and Communications Card, Japan Rail’s Suica Card, which predate the ISO/IEC 14443 standard. The following tables list smart cards used for public transportation and other electronic purse applications. First Data delivers Contactless Credit and Debit cards for its customers.

A related contactless technology is RFID (radio frequency identification). In certain cases, it can be used for applications similar to those of contactless smart cards, such as for electronic toll collection. RFID devices usually do not include writeable memory or microcontroller processing capability as contactless smart cards often do.

There are dual-interface cards that implement contactless and contact interfaces on a single card with some shared storage and processing. An example is Porto’s multi-application transport card, called Andante, that uses a chip in contact and contactless (ISO/IEC 14443 type B) mode.

Like smart cards with contacts, contactless cards do not have a battery. Instead, they use a built-in inductor, using the principle of resonant inductive coupling, to capture some of the incident electromagnetic signal, rectify it, and use it to power the card’s electronics.

Commonly used in contactless IC card chip is: NXP(Philips) MIFARE Classic? 1K, MIFARE Classic? 4K, MIFARE? Ultralight, MIFARE? desfire, T5557, T5567, T5577, FM11RF08, ISSI S70, EM4100, EM4102, TK4100, TK4102, GEN2 6C, I-CODE-2, TI, HID..etc

Contactless IC Card

The Contactless card range consists of read-only low-frequency ID cards, MIFARE® cards, TypeB cards and CPU cards.
These cards are used for a variety of purposes e.g. identification and electronic wallet etc. As the transmission of power and data requires no physical contact with the card, users can truly enjoy the ease-of-use of contactless technology. No longer do users have to worry about damage during card contact with readers or stains on contact surfaces that may hinder data transmission.

Product Advantages:
As there is no physical contact between card and reader, previous causes for failure e.g. bad reader/card
contacts are significantly minimized
Easy & fast operation
Eliminates the need to insert and retrieve cards from readers, therefore ensuring more user-friendliness.
This product can work within a 10cm distance from the card reader.
This product also works well regardless of orientation or card reader position.
Capable of Multiple Applications
Its special memory structure enables multiple applications to run on this card. It can also run on a variety of systems. Users can define their own code and access condition for each application respectively.
Excellent Authentication and Security
A unique serial number is assigned and written into each card during its manufacturing phase. This serial
number can never be changed after the card leaves the factory.
A mutual validation standard is adopted between card and reader, meaning, the reader needs to verify the
card and the card needs to verify the reader before any transmission can begin.


Using NFC data is exchanged by two inductively coupled coils — one per appliance — generating an magnetic field with a frequency of 13.56 MHz. The field is modulated to facilitate data transfers. For the communication one device acts as the initiator (starting the communication) whereas the other device operates in target mode (waiting for the initiator). Thus not more than two devices can be evolved in the communication.
The rolls of the devices — initiator and target — are assigned automatically during the listen-before-task concept which is part of the mode switching of NFC. In general each NFC device acts in target mode. Periodically the device switches into initiator mode in order to scan the environment for NFC targets (= polling) and then falls back into target mode. If the initiator finds a target an initiation sequence is submitted to establish the communication and then starts exchanging data.
NFC distinguishes two operation modes for communication: passive and active mode.
Passive Mode
In passive mode only the device that starts the communication (the initiator) produces the 13.56 MHz carrier field. A target introduced to this field may use it to draw energy but must not generate a carrier field at its own. The initiator transfers data by directly modulating the field, the target by load-modulating it. In both directions the coding complies with ISO14443 or FeLiCa, respectively. This mode enables NFC-devices to communicate with existing contactless smart cards. The term load modulation describes the influence of load changes on the initiator’s carrier field’s amplitude. These changes can be perceived as information by the initiator. Depending on the size of the coils, ranges up to 10 cm and data rates of 106, 212, and 424 kBit/sec are possible.
Active Mode
When in active mode, both appliances generate an RF field. Each side transmits data by modifying its own field, using an Amplitude Shift Keying (ASK) modulation scheme. Advantages compared to passive mode is a larger operating distance (up to 20 cm) and higher transmission speeds (eventually over 1 MBit/sec). To avoid collisions only the sending device emits a electromagnetic field; the receiving entity switches off its field while listening. If necessary these roles can change as often as needed.
Usecases and Applications
An NFC compliant device offers the following modes of communication:
Reader/Writer Mode: In Reader/Writer mode an NFC system acts as an ordinary reader for contactless smart cards. If two or more cards are present in the reader’s carrier field one is selected using an anti-collision algorithm. NFC also takes care of sensing whether the chosen card is ISO 14443-A/B or FeLiCa compliant. The method used for anti-collision is dependent on the type of card detected. This mode causes the NFC device to act as an active device. From an application’s view there is no difference between a conventional and an emulated terminal, accesses to the contactless token proceed equally.
Operating in this mode, the NFC device can read and alter data stored in NFC compliant passive (without battery) transponders. Such tags can be found on e. g. SmartPoster allowing the user to retrieve additional information by reading the tag with an NFC device. Depending on the data stored on the tag, the NFC device takes an appropriate action without any user interaction. If e. g. an URI was found on the tag the handset would open a web browser.
Card Emulation Mode: Tag emulation mode is the reverse of reader/writer mode: A contactless token is emulated. Now the device acts soley in passive mode. Due to the fact that the card is only emulated it is possible to use one NFC wdevice to act on behalf of several „real“ smart cards. Which card is presented to the reader depends on the situation and can be influenced by software. Additionally an NFC device can contain a secure element to store the information for the emulated card in a secure way.
In this case an external reader cannot distinguish between a smart card and an NFC device in card emulation mode. This mode is useful for contactless payment and ticketing applications for example. Actually, an NFC enabled handset is capa-ble of storing different contactless smartcard applications in one device.
Peer-to-Peer Mode: This mode is specific to NFC. After having established a link between the two participants (the method is equal to ISO 14443-A) a transparent protocol for data exchange can be started. The data block size can be chosen freely, with an MTU (maximum transmission unit) limited to 256 bytes. Main purpose of this protocol is to enable the user to send his/her own data as soon as possible (i. e. after a few milliseconds). In a peer-to-peer session either both initiator and target can be in active mode or initiator in active and target in passive mode. This helps the target to reduce its energy consumption and is therefore especially useful if the initiator is a stationary terminal (e. g. a ticket counter) and the target a mobile device (e. g. a mobile phone).
The NFC peer-to-peer mode (ISO 18092) allows two NFC enabled devices to establish a bidirectional connection to exchange contacts, bluetooth pairing information or any other kind of data. Cumbersome pairing processes are a thing of the past thanks to NFC technology. To establish a connection a client (NFC peer-to-peer initiator) is searching for a host (NFC peer-to-peer target) to setup a connection. Then the Near Field Communcation Data Exchange Format (NDEF) is used to transmit the data.

RFID contactless card

RFID contactless card is a plastic or paper card which is embedded with a microchip and antenna inside, it is widely applied as access control card, employee ID card, hotel key card, parking card. Dual frequency RFID card is also available on request.

Size:CR80; CR50; size can be customized
Chip Available:
Low Frequency (LF): 125KHz
High Frequency (HF): 13.56MHz
Ultra High Frequency (UHF): 840~960MHz
Card Thickness:From 0.54mm~0.84mm; Thickness can be customized

We are providing RFID cards with various shapes, chips (Low Frequency, High Frequency, Ultra High Frequency) and material to meet different customers’ requirements. Standard RFID credit card size of CR80 is the most common sizes in Nexqo’ experience.

CR80: 86*54mm (3-3/8*2-1/8”)
Card Material: Plastic PVC, BioPVC®, PET and Paper available
Card Surface: Matte/Glossy/Frosted Finish

Chip options:
LF Chips: EM4200, EM4305, EM4450, Hitag256, ATA5577
HF Chips: Mifare S20, Mifare S50, Mifare S70, Ntag213, Ntag215, Ntag216, Desfire2k, Desfire4k, Desfire8k, Plus 2k, Plus 4k, I-Code2
UHF Chips: Alien Higgs3, Impinj Monza 4E, Impinj Monza 4D, Impinj Monza 4QT, NXP UCode

Besides, OPRFID provides programming and encoding services which exactly fit customer’s programming or encoding requirements. Customized information or data could be encoded into the microchip. With doing this, customers could put some corresponding information into the cards to make sure they are running on the right system and belong to the right person.

Available Crafts
All the following features can be added on our RFID cards.
Hot stamp (gold/silver/red), Laser silver/gold, Laser Engraving, Ink jet printing, Scratch off panel, Bar-code/QR code, Thermal printing, Hologram, Embossing, Adhesive sheet, UV ink, Hologram, Hole punch, etc.

Dual Interface Card

Dual Interface Card is a microprocessor card which has one chip with contactless & contact interfaces. It can be used at banking, transportation, healthcare, ID, Government and other areas that need larger memory and higher security than a standard contactless & contact memory card.

Thanks mature chip technologies from players like NXP, Infineon, ST, FUDAN, HuaHong etc and related OS & solution suppliers. After years’ experiences of production & development, now we are proudly ready to support your project of Dual Interface Card with superb and stable quality for mass production.

We hava 2 ways to help you on Dual Inter-face Card supply.
1.Chip consign and OEM Card making service. If you already defined the chip model & source likes from NXP, we can help you on card making. You are welcome to consign chips to our facility for card’s building.

Here after are the typical Dual Interface chips from NXP JCOP series:

Code Brief Name Platform/Spec Memory (bytes)
CJ3A040 J3A040 JCOP 2.4.1 40k
CJ3A080 J3A080 JCOP 2.4.1 80k
CJ3A081 J3A081 JCOP 2.4.1 80k
CJ0BLA5 JCOP31/36k JavaCard 2.2.1 36k (Mifare 1K)
(Mifare1K Emulation ) Visa GlobalPlatform 2.1.1
CJ0BLA3 JCOP31/72k JavaCard 2.2.1 72k (Mifare 1K)
(Mifare1K Emulation) Visa GlobalPlatform 2.1.1
CJ0BLA8 JCOP31/72k JavaCard 2.2.1 72k (Mifare 4K)
(Mifare 4K Emulation) Visa GlobalPlatform 2.1.1
CJ0BLA4 JCOP41/72k JavaCard 2.2.1 72k (Mifare 4K)
(Mifare 4K Emaulation) Visa GlobalPlatform 2.1.1

Please note that JCOP 10, JCOP 21, JCOP 31 and JCOP 41 are being replaced by the J2A and J3A family of products

2. If you have new project needs Dual Interface card solutions. We have ability to work with you and System Integrator or Card Issuer together for R&D and pilot run.
Java Series Chips & Smart Cards
Short Data Sheet

Product Status
Product Name UCOS 3.0 JCOP Chips & Smart Cards
Product Life Status Product in certification–Sample avaliable
Certification BCTC Certified(PBOC 3.0, PBOC 2.0)
NSICCS Certification expected for March, 15
VISA, MasterCard Certification expected for September, 15
Main Characteristics
ROM Applets Dual PBOC 3.0, Dual PBOC 2.0, NSICCS 1.1, Dual PSE 1.2
EEPROM Applets
User Memory Available 40K~80Kbytes
Standard Compliance
JC Release 2.2.1
GP Release 2.1.1
Contact Interface
Standard Compliance ISO 7816
T=0 Yes
T=1 Yes
Contactless Interface
Standard Compliance ISO 14443-2, -3, -4 Type A with Mifare 1K emulation
T=CL Yes
Baud Tate 106Kbit/s, 212Kbit/s, 424Kbit/s in both ways
Operating Frequency 13.56MHz
Cryptographic Algorithms
AES Yes: 16,24 and 32 btyes
RSA Yes up to 2048 bit
SHA1 Yes
SHA256 Yes
Card Body
Chip From/Type Contact, Contactless, Dual Interface
Various module industrial packaging forms on demand
Antenna Full size(restricted embossing area)
Standard Compliance ISO 14443-1 compliant, etc.
Material Banking grade PVC with overlay for posting personalization
Technology Hot lamination etc regular card manufacturing technologies
Magnetic Stripe ISO 7811 -4, -5 compliant

Clamshell Card

Clamshell Card,It is a cost-effective solution,compared to ISO card. Very robust card in clamshell housing. Very durable for long time use. With slot.

Dimension:85.6 x 54 x 1.8mm
Material: ABS
Frequency: 125KHz, 13.56MHz, 860-960MHz

ID Badge
Campus ID
Security/Access Control
Building Security

Print: offset, silkscreen
Serial number printing: thermal or inkjet format
Signature panel, Scratch off, Hologram, Laser film
Magnetic stripe: LoCo 300 Oe, HiCo 2750 Oe or 4000 Oe
Embossing, Hot-stamping, Hole punching
Encoding, UV printing, Color photo printing

Ordering Information
Delivery Term
<10k pcs: within 15 working days
≥10k pcs: to be negotiated
Payment term
TT in advance or L/C
Others on request

Combining two kinds of chip in one card
Dual frequency card: LF+HF, LF+UHF, HF+UHF Other combinations are available on reuquest
Muti-applications, high level of security
Size: CR80 standard — 85.6mm×54mm
Material: PVC / PC / PET / PETG / …