The 0603DC-51NX_RW from Coilcraft is a RF Inductor with Inductance 0.051 uH, DC Resistance 0.216 Ohms, DC Current 0.57 to 1.17 A, Self Resonant Frequency 1.95 GHz, Quality Factor 77, 57. Tags: Wire Wound Inductor, Ceramic Inductor, Chip Inductor. More details for 0603DC-51NX_RW can be seen below.