SC3340F-102

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Fixed Inductors

The SC3340F-102 is a fixed inductor, which is a passive electrical component commonly used in circuits. It stores energy in the form of a magnetic field, allowing the inductor to act as a filter in some applications. Fixed inductors are also used to create a variety of filter networks, tuned circuits, and impedance matching circuits, among other uses.

A fixed inductor is composed mainly of a coil of conductive material, usually copper wires, wrapped around a soft core material. The size and shape of the core material determines the inductance of the inductor. For the SC3340F-102 in particular, it is wound with copper wires of low annealed resistance and insulated for high electrical characteristics, and has a shielded bobbin construction for high-reliability. Additionally, the inductance value of 10uH and tolerance of 10% ensures a maximum power (without core saturation) of 1.2 Watts and a temperature range of -40°C to +125°C.

Application Field

The application field for the SC3340F-102 fixed inductor includes its use in general fixed inductors, DC-DC converters widely used in power supplies, and power inverter electronic ballasts for CFL, LED, and other lamp applications. It is also used in automotive electrical systems, motor drive control systems, and more.

In particular, the SC3340F-102 is often used in the implementation of buck, boost, and buck-boost converters in power supplies. Buck converters are a type of DC-DC power converters commonly used in voltage regulation and microprocessor-based control systems for a specific voltage level. Boost converters, on the other hand, are used in voltage conversion and output voltage control. Last but not least, buck-boost converters are used to convert between two voltage levels, either buck or boost depending on the load.

Working Principle

Fixed inductors work due to the principles of electromagnetic induction. When a varying current passes through the fixed inductor coil, it produces an electromagnetic field with lines of magnetic flux around it. If the current is decreasing, a back-EMF (electromotive force) is induced within the coil, decreasing the current until it reaches zero, and vice versa. This varying back-EMF is the basis for the storage of energy of the inductor, known as inductance.

The inductance of the SC3340F-102 determines its application field. Its 10uH inductance provides sufficient inductive reactance and sufficient current to be used in a wide range of power supply converters. Additionally, the temperature range of -40°C to +125°C allows the fixed inductor to be used in a wide variety of applications.

Conclusion

The SC3340F-102 fixed inductor is a passive electrical component used in power supplies, power inverters, automotive electrical systems, and more. It operates on the principle of electromagnetic induction, where a varying current passing through the fixed inductor coil produces a corresponding varying back-EMF. The 10uH inductance value and temperature range of -40°C to +125°C allows the fixed inductor to have a wide application field in power supply converters and other systems.

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