The AL12A18N5*TR from KYOCERA AVX is a RF Inductor with Inductance 0.0185 uH, DC Resistance 0.0039 Ohms, DC Current 4 A, Self Resonant Frequency 2.5 GHz, Operating Temperature -40 to 125 Degree C. Tags: Air Core Inductor, Wire Wound Inductor. More details for AL12A18N5*TR can be seen below.