The L-15W56NJV4E from Johanson Technology is a RF Inductor with Inductance 0.056 to 0.056 uH, DC Resistance 0.25 Ohms, DC Current 500 mA, Self Resonant Frequency 1600 MHz, Quality Factor 60 @ 500 MHz. Tags: Wire Wound Inductor. More details for L-15W56NJV4E can be seen below.