Series:	819
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Molded
Material - Core:	Iron
Inductance:	820nH
Tolerance:	±10%
Current Rating:	465mA
Current - Saturation:	--
Shielding:	Unshielded
DC Resistance (DCR):	220 mOhm Max
Q @ Freq:	40 @ 25MHz
Frequency - Self Resonant:	200MHz
Ratings:	--
Operating Temperature:	-55°C ~ 105°C
Inductance Frequency - Test:	25MHz
Mounting Type:	Through Hole
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.078" Dia x 0.200" L (1.98mm x 5.08mm)
Height - Seated (Max):	--

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Introduction

Fixed inductors are types of electrical components used to create electrical current in circuits. They consist of a wire which is coiled around a ferrite core, or other material like plastic, and the current passes through it. This type of inductor helps to regulate the magnitude and direction of current in the circuit by providing impedance or a resistance against the changing current. Inductors are frequently used in electronic circuits and can be found in many devices such as computers, automobiles, televisions, and sound systems.

0819-22K Application Field and Working Principle

The 0819-22K Series of fixed inductors are miniature, SMT, high frequency components. They offer excellent dc and ac performance, at temperatures of up to 70 °C. This kind of fixed inductor is designed for use in power supplies, switching and DC/DC converters, with frequencies in the range of DC through 3 MHz and currents up to 770mA.The primary application field of the 0819-22K devices is in RF/microwave circuits. Its construction and operation principle is similar to that of a common inductor, but it uses a ferrite core and shielding in order to further reduce interference. The core of the component is composed of a ferrite core with a conductive wire wound around it. This design allows for greater levels of bias current, allowing for a higher operating frequency and reduced power consumption.Upon application of a voltage difference across the leads, current starts to flow through the inductor. This electrical energy induces a magnetic field surrounding the core, which in turn increases the current passed by the inductor. This current is restricted by an opposing magnetic field from the core, producing an opposition that can be measured as impedance. This impedance is a measure of resistance and has an effect on the magnitude and the direction of the current flow.

Conclusion

The 0819-22K Series of fixed inductors are versatile components that can be used in many types of circuits, ranging from those found in everyday household items to complex and specialized solutions. The inductors are able to operate at high frequencies with high efficiency, providing excellent dc and ac performance. They are also able to withstand temperatures of up to 70 °C, making them suitable for a wide range of applications. With their unique construction, utilizing a ferrite core and shielding, the 0819-22K devices offer superior interference protection, allowing for a higher operating frequency and lower power consumption.

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