Automotive Transponder Coil Operates at a Center Frequency of 125 kHz


TDK Corporation presents the miniaturized TPLC553030-592H automotive transponder coil for tire pressure monitoring systems (TPMS) that operate at a center frequency of 125 kHz.

With its dimensions of just 5.5 mm x 3.0 mm x 3.0 mm, the new component features a footprint that is 30 percent smaller than its predecessor. Thanks to its optimized core geometry and material, the miniaturized component achieves a high sensitivity of nearly 25 mV/μT, which allows TPMS initialization at the same distance as its 8-mm predecessor.

The new transponder coil has an inductance of 5.89 mH with a minimum Q value of 35 and a maximum DC resistance of 70 Ω. The AEC-Q200 qualified and RoHS-compatible component features a wide temperature range from -40 °C to +125 °C.

Main features and benefits

  • 30 percent smaller footprint than its predecessor
  • High sensitivity of nearly 25 mV/μT despite miniaturization
  • Qualified to AEC-Q200

For more: http://www.global.tdk.com/corp/en/news_center/press/20180313_01.htm

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