common mode choke core

- Apr 09, 2018 -

The quality factor Q is a physical quantity that represents the quality of the coil and Q is the ratio of the inductive reactance XL to its equivalent resistance, ie: Q=XL/R. It refers to the ratio of the inductive reactance to its equivalent loss resistance when the inductor is operated at an AC voltage of a certain frequency. The higher the Q of the inductor, the smaller the loss and the higher the efficiency. The Q value of the coil is related to the direct current resistance of the wire, the dielectric loss of the bobbin, the loss caused by the shield or the core, and the influence of the high-frequency skin effect.