ELJ-PE4N7KFA Inductors, Coils, Chokes

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Fixed inductors, also known as chokes, are electrical components used in various applications for DC circuits and lower frequency AC circuits. The ELJ-PE4N7KFA is an example of a fixed inductor, and is mainly used for its high current rating and stability of inductance in circuit applications. This article will discuss the working principle of the ELJ-PE4N7KFA and the application fields in which it is commonly used.

A fixed inductor is constructed as a coil of insulated wire wound onto a core material. The core material may be composed of iron or ferrite and is what determines the inductance of the coil. As electrical current passes through the coil, an electromagnetic field is produced. This field then creates a magnetic flux which opposes a change in the current, thus acting as a resistor in the circuit.

The ELJ-PE4N7KFA is a fixed inductor which consists of a mainly iron core, surrounded by a winding of high-grade enameled copper wire. At the rated current, the inductance of the ELJ-PE4N7KFA is specified at 47uh +/- 10%, with a DC resistance of 0.030 ohms. Rated voltage is specified at 50V, and the continuous current rating is 2.5A. The physical size of the ELJ-PE4N7KFA is 5.5mm (L) x 7.3mm (W) x 10.5mm (H).

As far as its applications, the ELJ-PE4N7KFA usually finds its way into applications requiring high power loss, low reactance, and a high current rating. It is commonly used for chokes, filters, snubbers, and suppression coils. It can also be used in voltage regulators, bypass circuits, and switch-mode power supplies. Due to its small physical size, the ELJ-PE4N7KFA is also used in space-constrained equipment. Its characteristics make it especially suitable for applications in DC circuits.

In summary, the ELJ-PE4N7KFA is an example of a fixed inductor which is mainly composed of an iron core and a winding of high-grade enameled copper wire. It is commonly used for its high current rating and stability of inductance in circuit applications such as chokes, filters, snubbers, and suppression coils. It is also used in voltage regulators, bypass circuits, and switch-mode power supplies due to its small physical size. The ELJ-PE4N7KFA is thus a versatile and reliable component for many applications in DC circuits.

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