WE-CAIR Air Coil Inductors WE-CAIR Air coil SMD RF Inductors, with a high self-resonant frequency, a very high quality factor (>100), currents of up to 3.5A and Inductance values from 22nH up to 120nH. The WE-CAIR Air coil inductors are pick and place compatible and have tinned connector pins making them easy to solder. The WE-CAIR series are designed especially for high current RF applications such as Broad band filtering and RF-Decoupling.