Tiny 25kHz transponder coil for tire pressure monitoring systems

March 13, 2018 // By Julien Happich
The TPLC553030-592H from TDK Corporation is a miniaturized automotive transponder coil designed for tire pressure monitoring systems (TPMS) that operate at a center frequency of 125 kHz.

Measuring only 5.5x3.0x3.0mm, 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 8mm 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.

TDK Corporation – www.tdk.com

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