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The 203-18 from West Coast Magnetics is a RF Inductor with Inductance 1 uH, DC Resistance 130 mOhms, Self Resonant Frequency 120 MHz, Quality Factor 90 at 30 MHz, Tolerance ±5%. More details for 203-18 can be seen below.
100, 120 and 160 nH Chip Inductors for NFC Circuits
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