RFID transponder

Hr electronic manufactures and supplies RFID components for a wide range of applications in almost all sizes and frequencies (both LF and HF technology).

Traditional access systems and data capture systems are increasing converting to RFID technology. In this context, our high quality standard transponders such as key fobs, watertight armband transponders, cards and coin-type tokens are equipped to suit customer requirements, with the optimal transponder chips for the application.

In addition to our standard transponders, we also develop customer-specific RFID components and readers for use in particularly demanding applications, such as:

  • Access control
  • Industrial automation
  • Logistics
  • Production control and monitoring
  • Robust industrial applications
  • Process planning
  • Container management

The design of the RFID transponder is determined by the customer’s application, with virtually no other limitation to its shape, size, nature and colour. With our ultra-flat PET transponders, many types of equipment can be easily modified for subsequent integration into an ever more sophisticated electronic environment.

Our high capacity for manufacturing air-cored coils makes us an ideal RFID supplier, since it is mainly air-cored coils that are used in this sector.

Technical Information:

RFID (Radio Frequency Identification) transponders provide rapid and reliable identification and tagging of goods, parts or people. There are two basic types of transponder:

    • Passive transponders
    • Active transponders

Passive transponders consist of a hard-coded microchip and a coil, which forms the receiver antenna. In contrast to active transponders, these units do not require their own power supply, but draw the necessary energy from the HF field of the reader device. Dispensing with an integrated power supply allows the manufacture of transponders with very small dimensions.

Compared with traditional systems such as barcode systems, there are many advantages:

  • No visual contact with the reader station is necessary, since RFID transponders can be read without contact.
  • Very low sensitivity to harsh environments and dirt.
  • Many possible physical forms.
  • Virtually unlimited lifetime (approx. 100,000 write processes for a Read/Write transponder).
  • Maintenance-free.
  • Very high reading speed.
  • Simultaneous processing of multiple transponders is possCan be implanted in human beings and animals.
  • User-defined data can be saved on the microchip.
  • igh copy-protection.Data protection via access rights and encryption.

RFID frequencies and technologies

Because RFID applications use radio-frequency waves to communicate, crosstalk interference between the radio systems must absolutely be avoided. An important criterion when selecting suitable technology is therefore the frequency band used for communication between the RFID reader (Write and/or Read device) and transponder. In order to avoid crosstalk between the radio systems, RFID applications use the ISM frequency bands (ISM = Industrial, Scientific, Medical) that are reserved for applications in the scientific and medical sectors. There are three frequency ranges:


Popular frequencies

Areas of application


Low Frequency (LF)
30 kHz - 300 kHz
125 kHz, 134 kHz
  • EM4102, EM4150
  • Hitag-1, Hitag-2
  • Hitag-S
  • Access control
  • Product tracking
  • Authentication
  • Animal identification
High Frequency(HF)
3 MHz - 30 MHz
13,56 MHz
  • Legic
  • I-Code
  • Mifare
  • Logistics
  • Storage management
  • Library management
Ultra High Frequency(UHF)
300 MHz - 3 GHz 
433 / 868 / 915 MHz


  • Toll charging
  • Logistics
  • Baggage tracking etc.

Hr electronic manufactures and supplies RFIDs for the LF range (125 kHz) and the HF range (13.56 MHz). In most cases, combinations of both technologies are also available.

Memory access and memory capacity

RFID technologies also differ in their memory access and memory capacity:

Read-Only transponder: For these transponders, only the chip ID number can be read.

Read-/Write transponder: These systems also permit user-defined data to be written and stored, and are therefore suitable for payment systems and production tracking. Microchip memory capacity varies according to the specific technology, from 16 bytes to 8 kb.