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The 143-18J12 from Coilcraft is a RF Inductor with Inductance 0.895 uH, DC Resistance 0.0276 Ohms, DC Current 5.7 mA, Self Resonant Frequency 195 MHz. More details for 143-18J12 can be seen below.
100, 120 and 160 nH Chip Inductors for NFC Circuits
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