An inductor with a fixed inductance is called a fixed inductor (also known as a fixed coil), which can be a single-layer coil, a multi-layer coil, a honeycomb coil, or a coil with a magnetic core. The structure of this type of coil is based on the inductance and maximum DC working current, using enameled wire of corresponding diameter to be wound on the magnetic core, and then packaged with epoxy resin or plastic. This type of fixed inductor has the advantages of small size, light weight, firm structure, and convenient installation. It is mainly used in circuits such as filtering, oscillation, notch, and delay
Detection and Substitution
Function of testing report:
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