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TDK Develops New Inductors for NFC

TDK Corporation has developed the new MLJ-H1005 inductors for use in NFC (near field communication). Mass production will begin in February 2021.

TDKThe inductors’ intended use is for the LC filters of NFC circuits. Inductors must have narrow tolerances to minimize the loss caused by mismatched impedance with the antenna. TDK offers this line of inductors featuring a tolerance of ±5% to meet this need.

Also, it is important to control inductor loss at the 13.56 MHz communication frequency to prevent the reduction of antenna output power.

The AC resistance (Rac) must be kept low and maintained even as the current is applied. By super low loss material development, the new MLJ-H series achieves lower Rac during high-current applications than the existing MLJ-W series.

The use of NFC circuits is rapidly increasing in smartphones, smartwatches, wearables, and other peripheral devices. They are projected to be used in diverse ways in the realization of a completely touchless society, including in cashless payments.

TDK will expand its line of MLJ series inductors to cater to these needs and meet the needs of customers.

Main applications

  • NFC circuits

Main features and benefits

  • Low AC resistance is achieved in high-current applications, suppressing the loss
  • Narrow inductance tolerance of ±5%, which suppresses loss caused by mismatched impedance with the antenna
  • Compact, low-profile dimensions that save space, high-density mounting is possible by low magnetic leakage structure

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Aishwarya Saxena

A book geek, with creative mind, an electronics degree, and zealous for writing.Creativity is the one thing in her opinion which drove her to enter into editing field. Allured towards south Indian cuisine and culture, love to discover new cultures and their customs. Relishes in discovering new music genres.

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