38L882C Inductors, Coils, Chokes

Fixed inductors, also known as chokes, are high-frequency electric components that allow direct current to pass while blocking or limiting the alternating current. They are frequently used as part of electronic circuits and typically found in power supplies, radios, and electronics equipment. The 38L882C is a fixed inductor designed for use in certain electronic products. This article discusses the applications for 38L882C as well as the underlying working principle.

The 38L882C is a two-section fixed inductor that offers inductance values of 4.7uH and 1.75mH. It is used in applications such as power supplies, digital audio amplifiers, and switched-mode power supplies. The 38L882C has a wide operating temperature range from -55°C to +125°C. It is a low-profile inductor and has a small footprint to help reduce board space requirements. The 38L882C also features excellent EMI suppressor performance, low DCR, and high current saturation resistance. These features make it well suited for applications in the higher-frequency range of 1 to 5MHz.

The working principle of a fixed inductor is based on the basic law of electromagnetic induction. This states that when a conductor moves through a magnetic field, a voltage is induced in the conductor which causes the flux in the magnetic field to change accordingly. When the flux changes, an electric current is created in the conductor. This is known as self-inductance and is the primary mechanism behind the operation of fixed inductors.

A fixed inductor consists of a tightly wound coil of wire and a magnetic core. When an AC signal is applied to the coil, a magnetic field is generated around it. This field interacts with the core material to produce a secondary field that opposes the primary field. This opposition to the current creates a back-EMF which lessens the amount of current flowing through the inductor. As the frequency of the AC signal increases, the opposition to the current also increases.

Fixed inductors are used in a variety of electronic circuits to provide a number of different functions. One of the most common uses for fixed inductors is to prevent AC interference from entering or leaving a circuit. This is achieved by wiring the inductor in series with the circuit. The inductor acts as a filter and prevents AC interference from passing through. Fixed inductors are also used to create oscillators, which are essential for generating radio frequencies.

In conclusion, the 38L882C is a two-section fixed inductor that is used in a variety of applications. It offers excellent EMI suppression, low DCR, high current saturation resistance, and a wide operating temperature range making it ideal for applications in the high-frequency range. The working principle of a fixed inductor relies on the concept of self inductance which allows it to store and release energy as a magnetic field. Fixed inductors are used in a variety of different circuits for a variety of different purposes such as AC interference prevention and oscillator generation.