CR43-8R2MC Inductors, Coils, Chokes

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Fixed Inductors

CR43-8R2MC Application Field and Working Principle

Fixed inductors, also known as inductors, are electronic components made of conductive wires, magnetic core or ferrite core and other components. Because of their unique characteristics, fixed inductors are widely used in various fields. In particular, CR43-8R2MC inductors specifically refer to an AC line filtering chip developed by SPEEDY Electronics. Its performance characteristics are an operating temperature of –40°C to +85°C, a working frequency of 20 kHz to 1 MHz, an inductance of 8.2 uH to 7.2 uH, and a maximum DC resistance of 0.044 ohm. This type of inductor has an excellent temperature stability and power inductance ratio.

The CR43-8R2MC inductor is mainly used in AC lines for anti-interference and signal transmission in various electronic products. It is a multi-purpose inductor with a wide range of applications, such as switching power supply, DC-DC converter, electrostatic protection devices, hard disk motor drive, backlight drive, LCD power supply, LED drive, mobile phone power management, and other electronic equipment.

In terms of working principle, fixed inductors convert AC, such as audio or other signals, into an electrical current and store it in a coil.At the same time, it can provide reactance and electrical resistance against the direct current. The electric current induced in the coil is proportional to the time rate of change in the external magnetic field, and the induced current is limited by the inductance L. The larger the inductance, the smaller the current.

When the AC voltage is connected to the inductor, an electric current flows into the coil, and an opposing magnetic field is generated in the coil by the wire\'s loop effect and electromagnetic induction. This opposing field tends to oppose the alternating current apllied and to oppose changes in the current flow. Therefore, the relationship between the current flowing through the inductor and the alternating voltage can be described by the equation:

V=L(di/dt)

In summary, the CR43-8R2MC fixed inductor is a multi-purpose AC line filtering chip with a wide range of applications. The working principle is to convert the AC into an electrical current and store it in a coil while providing reactance and electrical resistance against the direct current.

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