SRU3017-220Y Inductors, Coils, Chokes

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Fixed inductors are passive electrical components that store energy in the form of a magnetic field. A fixed inductor, such as the SRU3017-220Y, is a specific form of an inductor that has a fixed inductance value. It is often used to maintain a current in an electronic circuit as it has inductance which resists changes in the current flow. This article will look at the SRU3017-220Y application field and working principle.

Application Field

The SRU3017-220Y fixed inductor is suitable for numerous appliations, ranging from switching mode power supplies and converters to RF/microwave components. It is most useful when combined with a transformer for electronic circuits that require a constant current supply. Some specific applications of the SRU3017-220Y include:

• Switching mode power supplies
• LED lighting and decoration lighting
• DC-DC and AC-DC converters
• Frequency converters
• Optical & CDMA communication
• High-end Bluetooth products
• Mobile phone, tablet PC
• RF/microwave components
• Computer motherboards

Working Principle

The SRU3017-220Y is a fixed inductor with an inductance value of 500nH (50uH ± 10%). This inductance value refers to the amount of energy stored by the component. The higher the inductance value, the more energy is stored in the magnetic field created by the fixed inductor. The SRU3017-220Y is usually connected to a transformer in order to receive energy from an AC voltage source and transfer it to a DC voltage source.

The SRU3017-220Y works on the principle of Faraday\'s Law of Induction. When a voltage source is connected to an inductor, a changing current will be induced in the circuit. This current flow produces a magnetic field, which induces a voltage opposing the original voltage across the inductor. This process, known as ‘back EMF’, is what counteracts the change in current within the circuit. This creates a steady, or fixed, current in the circuit.

In the SRU3017-220Y, a transformer is used to convert the AC voltage into a DC voltage. The magnetic field created by the fixed inductors will induce a voltage that opposes the change in current, counteracting the transformer\'s voltage output and thus maintaining a steady current in the circuit.

Conclusion

The SRU3017-220Y fixed inductor is a useful component for numerous electronic circuits, ranging from switching mode power supplies to RF/microwave components. Its main purpose is to combat the changes in current flow caused by a transformer, allowing for a steady current supply to be maintained. The SRU3017-220Y is based on the principle of Faraday\'s Law of Induction, whereby a changing voltage will induce a current flow which produces a magnetic field.

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