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The 143-15J12S from Coilcraft is a RF Inductor with Inductance 0.522 uH, DC Resistance 0.0239 Ohms, DC Current 6.1 mA, Self Resonant Frequency 250 MHz. More details for 143-15J12S can be seen below.
Ferrite Chip Inductors for use in Mobile & Infrastructure Equipments
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