4470R-25G

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Fixed Inductors

Fixed inductors, are components used in electrical circuits to provide a known inductance value, allowing the designer of the electronic device to build a defined LC circuit. In essence, these components allow the designer to control a circuit and limit the inductance value for desired outcomes.

Fixed inductors are inherently two-terminal devices, typically composed of a continuous metal core of a material such as ferrite or iron, wrapped by insulated wire coiling around it such that the core is not shorted out. When an ac signal is applied to an inductor, an electric current is developed in the coil, and energy in the form of a magnetic field around the core is generated. The magnetic field then collapses, inducing a current in the opposite direction of the original current in the coil.

The 4470R-25G is a type of fixed inductor, and is commonly used in switching power supplies, SMPS and other filter applications. It is composed of a ferrite core material and a cylindrically wound copper wire, with a bobbin structure that holds the winding. The bobbin is usually covered in a metal shield apart from the terminals and wound copper wire, which help prevent the induction of noise from other nearby electronic components. The 4470R-25G has a low DC resistance of 0.0026Ω, a rated current of 18A, an inductance of 25uH and a tolerance of ±20%.

The principle of operation of the 4470R-25G is based on the effect of a magnetic field generated in the core when a current is passed through the winding. As the current flowing through the coil increases, so does the magnetic flux linkages between the core and the winding, which produce an inductance that is proportional to the amount of current passing through the wire winding. As the current passes through the winding, the magnetic flux will induce a voltage across the wire, and as the current decreases, the magnetic flux will decrease, reducing the voltage across the terminal. This is known as Faraday’s law of induction.

The 4470R-25G is most commonly used in applications that require a high inductance value, such as SMPS, LED lamps, and switching power supplies. The high inductance value allows the component to ensure an adequate line filter performance for switching power supplies, reduce the EMI interference generated by LED lamps, and regulate the sudden change of voltage during the switching process in SMPS. It is most suitable for use in medium frequency, medium current, and high inductance applications.

Overall, the 4470R-25G fixed inductor is a reliable, high-performance component that is used in a wide range of applications. It is designed with a bobbin structure and a ferrite core to provide a low DC resistance and a high inductance value, making it suitable for high-current applications such as switching power supplies, SMPSs, and LED lamps. With its reliable operation and ability to maintain a tightly regulated inductance value, the 4470R-25G is a popular choice among engineers.

The specific data is subject to PDF, and the above content is for reference