ELC-18E331

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Fixed inductors are electronic components used in a range of electrical circuit design applications. The most common example is the ELC-18E331, which has become a popular choice in commercial, industrial and hobbyist electronic circuits. The ELC-18E331 can be used in a variety of applications, including voltage regulation, transient suppression, RF interference suppression, and energy storage. Below, we will discuss the ELC-18E331\'s application field and working principle.

Application Field
The ELC-18E331 is a unipolar, fixed inductor with a maximum inductance of 18mH, maximum DC resistance of 330ohms and a maximum saturation current of 12A. This makes it suitable for a range of power supply related applications. In particular, it is commonly used in DC-to-DC converters, SMPS circuits and buck converters, to ensure efficient and reliable power supply performance. It is also useful in overvoltage protection, inrush current suppression, EMI/RFI filtering, and power factor correction.

Additionally, because of its low DC resistance, the ELC-18E331 is also used in low noise amplifier and MRI circuits. It is also suitable for radio frequency identification (RFID) circuits – where its low resistance, low noise, and low inductance properties make for an efficient and reliable connection.

Working Principle
The ELC-18E331 fixed inductor is made using a spiral-shaped metal wire wound tightly around a ferrite core. This structure acts as an inductor, with the ferrite core aiding the effective storage of energy due to its high magnetic permeability.

As alternating current passes through the inductor, a magnetic field is created. This field then induces a current in the opposite direction of the flowing current. The energy that is stored in the magnetic field is then released in the reverse direction. This effectively reduces current voltage spikes and filters out EMI and RFI radiation. This makes them ideal for radio frequency circuits and for protecting sensitive electronic components from electrical interference.

Overall, the ELC-18E331 fixed inductor is a useful component for a variety of electrical and electronic applications. It is useful for voltage regulation, transient suppression, RF interference suppression, and energy storage. Additionally, its low resistance and low noise characteristics make it suitable for low noise amplifier and MRI circuits, and its low inductance properties make it suitable for radio frequency identification (RFID) circuits.

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