0819R-78J

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Fixed Inductors

Fixed inductors are electronic components that are essentially two wire coils wound around a core of iron or some other material. This type of inductor is typically used in applications requiring a steady inductance value over a wide range of current and voltage. Fixed inductors are commonly used for power supplies, filter circuits, signal integrity, and active transmission line circuits. This article will discuss the 0819R-78J fixed inductor and its application field and working principle.

Application Field

The 0819R-78J fixed inductor is primarily used in applications requiring stability in their impedance over a wide frequency range. Due to its tightly wound construction, it can be used in high-precision circuits where stability is a priority. Examples of applications that the 0819R-78J is suitable for include switching regulators, DC-DC converters, RF power amplifiers, and audio amplifiers. Additionally, due to the construction of the 0819R-78J, it is suitable for high-temperature applications.

Working Principle

An inductor works by storing energy in the form of a magnetic field when a current is applied. The magnetic field created by the current is proportional to the amount of current flowing through the inductor. When the current is stopped, the magnetic field collapses and the inductor produces a current in the opposite direction. This process is known as inductance.

The 0819R-78J has a current carrying capacity of up to 1.5A with a peak voltage rating of 20V. The peak voltage rating of the inductor is important, as this is the maximum voltage the inductor can safely handle. The inductance is also specified on the inductor and is important for determining the frequency response of the inductor. Other specifications include the DC resistance, which is important for determining the overall power dissipation of the component.

The 0819R-78J is a through-hole component and is typically installed from the top of the PCB. It also features a low profile design which makes it suitable for use in tight spaces. The through-hole design makes the component easier to install than surface mount inductors and also improves airflow around the component, thus reducing the risk of overheating.

Conclusion

The 0819R-78J fixed inductor is a versatile component suitable for applications requiring stability in their impedance over a wide frequency range, such as switching regulators, DC-DC converters, RF power amplifiers, and audio amplifiers. The 0819R-78J is an ideal solution for applications requiring a tightly wound, high-precision inductor with low profile design and through-hole mounting.

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