CR75NP-390KC Inductors, Coils, Chokes

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Fixed inductors, also known as chokes, are passive devices that primarily store electrical energy in magnetic fields. They are used to filter out electromagnetic interference and are widely used in a variety of electronic circuits. The CR75NP-390KC is a type of fixed inductor that is shaped like a cylinder and has two pins for electrical connections. This article explores the application field and working principle of the CR75NP-390KC.

Application Field

The CR75NP-390KC fixed inductor is used primarily for DC-DC power converters. It is designed to filter out high frequency noise and interference, providing clean direct current for the system. This noise filtering is essential in many electronic systems, including cell phones, computers, and other advanced electronic devices. The CR75NP-390KC can also be used in audio applications, such as amplifiers, to filter out noise and distortion.

Working Principle

The working principle of a fixed inductor involves a current being switched on and off inside the device. When the current is switched on, magnetic flux is generated and stored inside the device. When the current is switched off, the flux is released back into the circuit. This process is used to filter out high frequency signals and noise from the circuit. The amount of inductance in the CR75NP-390KC is relatively low, allowing it to pass signals with frequencies of up to around 150MHz.

The way in which the CR75NP-390KC is constructed helps to make the device reliable and effective. The design utilizes a ferrite core with an air gap, which helps to reduce the eddy currents that can cause interference. The device also has a secondary winding, which allows it to be used as an isolation transformer for audio applications.

The CR75NP-390KC fixed inductor is a reliable and efficient device that is found in many electronic circuits. Its ability to filter out high frequency signals and noise make it a versatile and useful component in a variety of applications. With its low inductance and reliable design, the CR75NP-390KC is an excellent choice for noise filtering in DC-DC power converters and audio applications.

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