The 7M2-183 from Coilcraft is a RF Inductor with Inductance 15 to 21 uH, DC Resistance 4.01 Ohms, Self Resonant Frequency 2.5 MHz, Operating Temperature -40 to 80 Degree C, Quality Factor 20. Tags: Wire Wound Inductor. More details for 7M2-183 can be seen below.