The drum core inductor is not only small in size, but also easy to install. It is a plug-in type inductor with small space; high Q factor; small distributed capacitance; high self-resonant frequency; special guide pin structure, not easy to produce closed circuit, Inductance is the use of wires to pass AC voltage, current, and the drum core inductor is the alternating flux around the inside of the wire when the wire passes through the alternating current. The ratio of the magnetic flux of the wire to the current that produces the flux. I-shaped inductors are generally used for circuit matching and signal quality control, general connection and power supply connection.
The stability of the I-shaped inductor is high, which is unmatched by the general inductance. The current used in the circuit is relatively stable, and the efficiency is also improved. The main function of the I-shaped inductor is to filter the signal, filter the noise, stabilize the current and control. Electromagnetic interference is an excellent countermeasure against EMI.
The skeleton of the I-shaped inductor is a winding bracket of a copper drum core inductance is one of the attributes of an electronic circuit or device. It refers to an electromotive force that resists the change of current due to electromagnetic induction when the current changes. Some large-sized fixed inductors or adjustable inductors (such as oscillating coils) , choke, etc.), the commonly used I-shaped inductor is regarded as the vertical version of the axial inductance, the application is convenient and similar to the axial inductance, but the common I-shaped inductor can have a larger volume of the inductor type, and the current can naturally Get a certain application improvement; most of them are to directly wrap the enameled wire (or yarn wrapped wire) on the skeleton, and then insert the core or copper core, iron core, etc. into the inner cavity of the skeleton to increase its inductance. The skeleton is usually made of plastic, bakelite or ceramic, and can be made into different shapes according to actual needs. Small inductors (such as I-inductors) generally do not use a skeleton, but directly wrap the enameled wire around the core.
The characteristics of the drum core inductor:
1. Small vertical inductor with small installation space;
2. The distributed capacitance is small and the self-resonance frequency is high;
3. Special guide pin structure is not easy to open circuit.
4. Protect with PVC or UL heat shrink tubing.
5. Lead-free environmental protection.