What are the unique advantages of plug-in I-shaped inductors in applications? Why has the development trend been so good in recent years?

1. What are the advantages of plug-in I-shaped inductors?

Small fixed inductor coils are usually wound directly on the core with enameled wire. They are mainly used in circuits such as filtering, notching, oscillation, and delay. There are two types of vertical and horizontal structure.

1. Vertical sealed fixed inductor Vertical sealed fixed inductor uses co-directional pins. Domestically produced LG and LG2 series inductors have an inductance range of 0.1 ~ 2200μH (directly labeled on the case) and a rated operating current of 0.05 ~ 1.6A, the error range is ± 5% ~ ± 10%. Imported are TDK series color code inductors, whose inductance is marked on the surface of the inductor with a color point.

2. Horizontal sealed fixed inductors Horizontal sealed fixed inductors use axial pins. Domestically produced LG1, LGA, LGX and other series.

The inductance range of the LG1 series inductor is 0.1 ~ 22000μH (directly marked on the case), the rated operating current is 0.05 ~ 1.6A, and the error range is ± 5% ~ ± 10%.

LGA series inductors adopt ultra-small structure, similar in shape to 1 / 2W color ring resistors, and their inductance ranges from 0.22 ~ 100μH (marked on the case with color rings), and the rated current is 0.09 ~ 0.4A.

LGX series color-coded inductors also have a small package structure. Their inductance ranges from 0.1 to 10000 μH, and the guest current is divided into four specifications: 50mA, 150mA, 300mA, and 1.6A.

What is the working principle of the plug-in I-shaped inductor?

I-shaped inductors work by the principle of electromagnetic induction. The main applications are: switching power supply noise suppression filters; power line and signal line electrostatic noise filters; converters and ultrasonic equipment such as radiation interference suppressors. Power loss of magnetic core inductor: During the exchange cycle, the energy loss caused by the change in magnetic energy of the magnetic core power inductor is stored in the magnetic core in the form of magnetic energy for the on-time and the magnetic energy extracted by the magnetic core when it is closed The difference.

Third, the type of plug-in I-type inductor?

There are currently three types of I-beam inductors: axial plug-in I-beam inductors, commonly used I-beam inductors, and patch I-beam inductors.

Commonly used I-shaped inductor (PK type inductor): It is regarded as a vertical version of axial inductor. It is easy to apply similarly to axial inductor, but commonly used I-shaped inductor can have a larger volume of inductor type, and the current can naturally get a certain amount. Application promotion

Axial type inductor (VC type inductor) is mainly used for the suppression of EMI, this inductor can have a larger volume and can bear a larger current;

SMD power inductors (CD type inductors): This type of inductor also comes from I-shaped inductors. The mounting type is chip mounting. Among the chip inductors, the inductor has a higher saturation capacity and has a simple structure. Low cost inductor in the chip series.