LQW18AN72NJ80D

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Introduction to LQW18AN72NJ80D Fixed Inductor

The LQW18AN72NJ80D is a fixed inductor from Murata Electronics, that is specifically designed for EMI Suppression and noise filtering in circuit designs. As a fixed inductor, the LQW18AN72NJ80D does not possess any sort of variable inductor, and hence its name. The fixed inductor is based on the principle that certain electric charges will bring about a magnetic field when in motion. The field in turn creates a concentrated electrical field, particularly around the inductor in question. This helps filter out EMI and provide some measure of noise suppression for the circuit in question.

Application Field

The LQW18AN72NJ80D is specifically used for EMI suppression and for noise filtering. To understand the application field of the device, it is important to understand the two functions: EMI (Electromagnetic Interference) Suppression and noise filtering. EMI is a phenomenon observed in electric circuits, where a particular electrical current may cause another current to be induced in another circuit. This then causes interference in the circuit, which can cause spikes, surges and other high-frequency phenomena. This is where the inductor helps reduce the interference by providing a sort of shield between the two different currents, thus effectively suppressing EMI.

As for its noise filtering function, the inductor can be used to filter out low-level and high-level noises and frequencies, as it can be used to reduce the noise floor. This process of noise reduction works very similarly to the EMI suppression function of the fixed inductor, as it effectively shields both the single and multiple currents from interference, thus eliminating noise and extra frequencies. This is why the LQW18AN72NJ80D is used in a lot of power and signal circuits to counter interference.

Design

The LQW18AN72NJ80D possesses a unique design that allows it to both effectively suppress EMI and filter out noise. It is designed to be a high inductance, low resistance part, meaning that it offers high inductance values while keeping the resistance value lower than usual. This makes it ideal for high power applications, as this allows for high currents to be sent through the device efficiently. As for the construction, it is a wound inductor, composed of an outer ceramic core, and copper wire wound around it. The copper wire is insulated in a sleeve of thermal plastic, to ensure utmost safety and stability in power intense applications.

Working Principle

The working principle behind the fixed inductor is based on the principle of magnetism, namely, that when electric current passes through a wire, a magnetic field will be generated. This magnetic field is then concentrated around the inductor, with the electrons moving in circles around it. This concentrates the current, and the electrons can be either filtered out or used to store energy. This allows both EMI suppression and noise filtering to be achieved with the fixed inductor.

Conclusion

The LQW18AN72NJ80D fixed inductor is designed for EMI suppression and noise filtering, and this is achieved through the unique construction and design of the part. Through the various components and parts, the device is able to create a concentrated electrical field, which is then used to filter out or suppress EMI and noise. This makes the LQW18AN72NJ80D the ideal choice for a wide range of power and signal circuits.

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