3090-472F

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3090-472F is a toroidal shaped fixed inductor, commonly used in various electronic circuits. It is designed with the typical round form factor and is commonly used as a component in RF applications, like radio frequency antennas. The outer windings of the inductor are several intertwined copper strands that are wound around a central core. The more strands, and the thicker the wire, results in a greater DC current capacity and a higher inductance value. Inductance value of the 3090-472F is typically 4.7μH. The rated DC current for the 3090-472F is 1.12A, and its rated DC resistance is 1.11Ω.The primary application of the 3090-472F is for filtering and signal shaping. In RF applications, it is typically used to create resonant circuits, where an inductor is combined with a capacitor. The high inductive reactance prevents the AC signals from passing through, while the capacitor allows the DC signals to pass. This combination of components helps to create an effective signal filtering network, attenuating specific frequencies while allowing others to pass through. In addition, the inductor helps to maintain signal quality by reducing high frequency noise, creating a more consistent signal.To increase the inductive value of the 3090-472F, a ferrite can also be added to the central core. Ferrites are an electrically insulating material, usually composed of a ferromagnetic oxide, which acts as an inductor due to its magnetic properties. This allows the 3090-472F to be used in various RF applications, such as antenna tuning, impedance matching, signal conditioning, and signal shaping.The working principle of the 3090-472F is based on Faraday\'s law of induction. When a conductor is placed inside a varying magnetic field, a current is induced in the conductor, due to the magnetic flux cutting through it. This current is known as an induced electromotive force (EMF), and is generally expressed as the product of the number of turns in the coil and the rate of change in the magnetic flux (which is usually measured in units of webers). The 3090-472F uses this principle to generate a current within its windings, which is then used in various electronic circuits.In summary, the 3090-472F is a fixed inductor, primarily used for RF applications. Its inductive value is typically 4.7μH, and its rated DC current is 1.12A. It is commonly used in combination with a capacitor, to create a filter network that attenuates certain frequencies while passing others. The application of the 3090-472F is based on Faraday\'s law of induction, where a current is induced in a conductor when it is placed inside a varying magnetic field.

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