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TDK TDK Electronics · TDK Europe

Inductors

March 13, 2018

Miniaturized transponder coil with high sensitivity for tire pressure monitoring systems

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

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 applications

  • Tire pressure monitoring systems (TPMS)

Main features and benefits

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

Key data

TypeDimensions [mm] Inductance [mH] @125 kHzQ @125 kHz DC resistance [Ω]
TPLC553030-592H5.5 x 3.0 x 3.05.89 ±3%35 (min.)70 (max.)