SDR0302-220ML

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Fixed Inductors

Inductors are passive components that store electric energy in a magnetic field in a circuit. They are used in both AC and DC applications in a wide range of areas, from traditional power supplies to modern electronics. The SDR0302-220ML is a fixed inductor with the following components and features to provide the many advantages it has to offer.

Components and Features

The SDR0302-220ML fixed inductor consists of a substrate base, a core and a winding that are encapsulated within a sealing/protection coat. The core material used for this type of inductor is ferrite which is a material that has high saturation characteristics and is highly stable. The substrate base is made from polyphenylene and has a thickness of 1.20mm. The winding of the SDR0302-220ML inductor is made with copper wire which has a 0.1mm diameter. It has an inner diameter of 2.5mm and an outer diameter of 3.2mm. The sealing/protection coat of this type of inductor is silicone coated.

This type of inductor has many features, such as its high rated current and high quality factor. The rated current of the SDR0302-220ML inductor is 0.22A and its quality factor is greater than 7.5. This means it is capable of dissipating less power and provides additional protection for the circuit it is used in. The SDR0302-220ML inductor also has a high inductance value which is 4.7uH at a frequency of 100kHz. Additionally, this type of inductor operates in the temperature range of -30°C to 130°C and is non-directional.

Application Field

There are many applications where the SDR0302-220ML fixed inductor can be used in both AC and DC circuits. It is mainly used in consumer electronics, such as audio amplifiers, portable radio transceiver, and LCD TVs, but also in power supplies, automotive, communication systems, and other fields. In audio amplifiers, it is used to filter DC current, reducing noise from the circuit while ensuring the required power is available. Similarly, in LCD TVs, it is used to filter the power supply and reduce noise on the picture.

The SDR0302-220ML inductor is also used to reduce noise in radio and communication systems. By using this type of inductor, noise caused by high-frequency signals is filtered out, ensuring cleaner and clearer sound. Additionally, this type of inductor is used in power supplies to assist in controlling inrush current, which can otherwise damage components or overload the circuit. In automobiles, the SDR0302-220ML inductor is often used as a noise filter in car audio amplifiers and other electrical circuits.

Working Principle

The SDR0302-220ML fixed inductor works according to the principles of induction. When an alternating current (AC) is applied to the inductor, a magnetic field is formed around the winding can increases over time. When the current is reduced or changes direction, the magnetic field around the winding also changes, which induces a reverse current in the circuit. This reversed current opposes the current that created it, allowing the inductor to store energy. The stored energy can later be released when needed.

The inductance of the SDR0302-220ML inductor is determined by the type of material and shape of the core, the diameter of the winding, temperature, and the number of turns of the winding. The inductance value can vary depending on the number of turns and shaped of the core. The silicone coating on the SDR0302-220ML protects it from moisture and other environmental factors, ensuring a long life of quality performance.

In conclusion, the SDR302-220ML fixed inductor is a versatile component that has a wide range of applications, such as audio amplifiers, power supplies, automotive, communication systems, and more. It is constructed with a substrate base, a core and a winding that are both encapsulated within a sealing/protection coat. It has a high rated current, quality factor, and inductance value, and can work within a temperature range of -30°C to 130°C. It works by induction, creating a magnetic field that helps store energy in the circuit.

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