HKQ04021N5B-E

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Fixed inductors are usually passive components with relatively simple structure and low cost. They are used in a variety of electrical and electronic circuits as either energy storage devices or component of filter and tuned circuits. A fixed inductor, such as the HKQ04021N5B-E, is essentially a coil of conducting wire wrapped around a ferrite or iron core material, depending on the inductance value requirements. These fixed inductors have applications in many different types of electronic circuits, including radio-frequency (RF), audio and power supplies.

The HKQ04021N5B-E fixed inductor is a three-terminal chip component which consists of a substrate and a winding pattern that are connected with epoxy or solder. It has an all-ceramic construction with a rated inductance of 15nH, a rated current of 1.5A, an operating temperature range of -40°C to +125°C, and a self-resonant frequency (SRF) of up to 6GHz, making it ideal for a wide range of RF applications. It is available as either a single surface mount chip or a multi-stage SMD.

The HKQ04021N5B-E fixed inductor is commonly used in RF amplifiers, RF filters, and broadband amplifiers. As the inductive component of these circuits, it helps to create a signal delay as well as provide energy storage. It possesses high Q-Factor, a key measure of the inductor\'s performance, and the ability to increase the power of a signal, making it ideal for increased signal strength. In addition, it also provides DC blocking, useful for preventing unwanted currents and voltage from entering the circuit.

The working principle of a fixed inductor is based on electromagnetic induction. When electrical current flows through the core material, it creates a magnetic field that induces a voltage in the windings, and vice versa. The magnetic flux is proportional to the current, thus when current changes the magnetic field also changes, generating an electromotive force (EMF) across its terminals. This EMF is equal in magnitude and opposite in direction to the applied current and is thus known as opposing or induced EMF. The inductance of the HKQ04021N5B-E fixed inductor is determined by the core materials used, the size of the core, and the number of turns of the coil.

In summary, the HKQ04021N5B-E fixed inductor is a three-terminal chip component with an all-ceramic construction and is used mainly in RF amplifiers, RF filters, and broadband amplifiers. It provides energy storage, helps to create signal delay, and increases signal strength due to its high Q-Factor. The working principle of a fixed inductor is based on electromagnetic induction and is determined by the core materials used, the size of the core, and the number of turns of the coil.

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