SRU2011-330Y

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SRU2011-330Y fixed inductors are widely used in various electronic applications. They are typically used in DC-DC converters, voltage converters, power supplies, motor drivers, dc-ac inverters, switch mode power supplies, power controllers, and a variety of other applications that require power conditioning.

Description

SRU2011-330Y fixed inductors are composed of a single winding of wire or foil spirally wound around a ferromagnetic core. The inductance of the fixed inductors is determined by the core material used and the size of the coil. The core is typically made of soft-magnetic material such as powdered iron or ferrite. They are also available as surface-mountable devices which save on board real estate.

Applications

Fixed inductors are used in a variety of applications. They are used as choke coils to filter out high frequency noise and also used in signal paths as transformers. They can also be used as filters in switch-mode power supplies, as well as in electromagnetic interference (EMI) suppression and transient elimination circuits. They are also used for decoupling, voltage regulation, and in power converters.

Working Principle

The working principle of a fixed inductor is based on the law of electromagnetic induction, which states that a changing current in a wire generates a magnetic field, which in turn induces a voltage across the wire. The magnitude of this voltage is proportional to the rate of change of the magnetic field, which is, in turn, proportional to the rate of change of the current flowing through the inductor. Thus, fixed inductors act as a filtering device, allowing low frequency currents to pass but blocking high frequency signals.

Advantages

Fixed inductors offer several advantages over other types of inductors, such as variable inductors. They are small in size, easily available, and relatively inexpensive. They have low manufacturing costs and are not affected by external factors, such as temperature and humidity. They also provide good performance in high-frequency applications, since their inductance remains nearly constant over a wide range of frequencies.

Disadvantages

Fixed inductors suffer from several disadvantages as well. Their inductance range is limited and cannot be adjusted. The quality of their performance is also dependent upon the quality of their manufacturing and can vary from one model to the next. They also exhibit non-linear behavior which can cause distortion in the signal, so depending on the application, they may not be well suited.

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