card option – chip


Plastic contactless cards with print

Plastic cards with a contactless module

The proximity module is an electronic chip with an antenna placed inside a laminated card. This module enables the exchange of information stored on it with the transmitting and receiving device via radio waves.

access card with proximity module

RFID proximity modules

A proximity module is an electronic chip with an antenna, generally known as an RFiD module or transponder, placed inside a plastic card. The installed transponder enables the exchange of information with the transmitting and receiving devices via radio waves. In addition to radio communication, the RFiD module also allows information to be stored on it. Most often, it contains a number that is read when the card is brought close to the reader. Such a module works with the reading system, so it must be appropriately selected for your system.

Proximity modules do not need an internal power source. Energy is supplied to them via radio waves by the reader. The communication process is preceded by the transponder charging phase. The antenna of the transmitting and receiving device emits an electromagnetic wave with a duration of 15 to 50 milliseconds. The energy stored in the transponder is used to send information to the transmitting and receiving devices. The information transfer time is up to 18 milliseconds.

The permissible distance between the card and the transmitting and receiving device depends largely on the type of antenna used and in most cases is up to 8 cm.

There are many proximity modules, differing mainly in memory capacity, type of security, frequency, and operating range. Currently, the most commonly used contactless modules for plastic cards are Unique EM 4100 and Mifare Classic 1 KB.

Unique EM 4100 module – specification

  • read-only
  • operating frequency: 125 kHz (low)
  • memory: 64 bits
  • 64-bit unique serial number

Mifare Classic 1 KB module – specification

  • read and write
  • operating frequency: 13.56 MHz
  • total memory: 1 kbyte (high)
  • data encoding
  • user-definable access to each memory block
  • option to place up to 16 different applications in a module
  • unique serial number

Proximity cards are made according to the ISO 14443 standard. Our offer also includes other popular proximity modules: Mifare Desfire, Mifare Ultralight, Mifare Plus, Hitag, and ATA, as well as popular modules for cooperation with smartphones: NTAG modules.

If you are not sure which type to choose, check the specifications of your reader or contact us. We will be happy to help you choose the right module. If you would like to know the production price of contactless cards, use the quotation form, specifying the number of cards, colors, type of personalization, and, of course, the selected contactless module.