4379-821KS

DC Resistance (DCR):	60 mOhm Max
Height - Seated (Max):	0.140" (3.56mm)
Size / Dimension:	0.155" L x 0.125" W (3.93mm x 3.17mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	25MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	185MHz
Q @ Freq:	106 @ 25MHz
Series:	4379
Shielding:	Shielded
Current - Saturation:	--
Current Rating:	700mA
Tolerance:	±10%
Inductance:	820nH
Material - Core:	Ferrite
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Introduction

Fixed inductors, also known as inductors, are components of an electronic circuit. They are passive components made up of a wire-wound core, usually with terminals or connecting lugs. Inductors store energy in the form of magnetic fields and react to currents passed through them and can also be used to create impedance in certain frequencies.Fixed inductors have been used since the early development of electronic components. With a variety of shapes and sizes, they are the most common type of inductor. This article focuses on the 4379-821KS application field and working principle.

4379-821KS application field and working principle

The 4379-821KS is a fixed inductor rated at 1µH, with a rated current of 390mA. It is an SMD component with a low profile, measuring 8.5 x 4.5 x 4mm. This component is specifically designed for use in telecommunications, automotive, motor drives and power supplies applications.The working principle of the 4379-821KS is based on electromagnetic induction. When a current passes through a conductor, a magnetic field is induced in it, which in turn causes a voltage to be induced in the same conductor. This voltage is known as “back EMF”. This back EMF opposes the applied voltage, and the thickness of the conductor determines the strength of the self-induced voltage in the conductor. The 4379-821KS works on the principle of inductance. Its core is made of wire-wound components which store energy in the form of a magnetic field. The strength of the magnetic field is proportional to the current flowing through it, and the voltage generated is a function of the magnetic field.Inductors can also be used to create impedance. This is done by wrapping the inductor wires around a magnetic core material. The resulting inductor has greater reactance, which means that current is blocked at specific frequencies.

Conclusion

The 4379-821KS is a fixed inductor rated at 1µH with a rated current of 390mA. It is designed for use in telecommunications, automotive, motor drives and power supplies applications. The working principle of the 4379-821KS is based on electromagnetic induction, where a back EMF is induced in the conductor, opposing the applied voltage. The inductor also works on the principle of inductance, where its core stores energy in the form of a magnetic field. Finally, inductors can be used to create impedance by wrapping the wires around a core material, thus blocking currents at specific frequencies.

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