RL855-121K-RC

DC Resistance (DCR):	590 mOhm Max
Height - Seated (Max):	0.217" (5.50mm)
Size / Dimension:	0.307" Dia (7.80mm)
Supplier Device Package:	--
Package / Case:	Radial
Mounting Type:	Through Hole
Inductance Frequency - Test:	1kHz
Operating Temperature:	-30°C ~ 100°C
Ratings:	--
Frequency - Self Resonant:	4.8MHz
Q @ Freq:	20 @ 790kHz
Series:	RL855
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	760mA
Tolerance:	±10%
Inductance:	120µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Bulk

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Fixed Inductors

Fixed Inductors are components that have a fixed inductance. The resistance of the inductor does not change with frequency or temperature, so they can be used in circuits with very little variation in performance over a large range of conditions. The RL855-121K-RC is a type of fixed inductor, and this article will discuss its application field and working principle.

Application Field

RL855-121K-RC fixed inductors are usually used in radio frequency (RF), microwave, and high power applications. They can also be used in sensitive signal processing applications, where minimal emitted noise is important.The RL855-121K-RC inductors are available in both axial and radial leaded packages. The axial package has a large amount of resistance to parasitic inductance from adjacent components. This also allows for a thicker copper wire, resulting in better current handling characteristics and improved inductance. The RL855-121K-RC inductors are especially suitable for communication infrastructure, providing low power loss in high frequency networks. They are also suited for use in RF power amplifiers, antenna matching circuits, and oscillator circuits.

Working Principle

The RL855-121K-RC fixed inductor operates on the principle of magnetic flux. When an electrical current passes through the inductor, a magnetic flux is generated. This flux exerts a force on the induction, causing it to oppose the current. This is known as inductance and is measured in henries.The RL855-121K-RC inductor has a series of metal core windings that are wound around a cylindrical non-ferromagnetic core material. The metal core windings are usually made from copper or silver plated copper wire. These core windings create a magnetic field, which induces a counter EMF that opposes the applied current. This is known as inductive reactance. The RL855-121K-RC inductor is designed to operate at frequencies up to 6 GHz.The RL855-121K-RC inductor has a wide range of applications. Its excellent temperature stability and low current loss makes it suitable for RF and microwave circuits, antenna matching circuits, high power oscillators, and communications infrastructure applications. The RL855-121K-RC inductor is also ideal for high frequency filter circuits due to its high Q value.

Conclusion

The RL855-121K-RC is a type of fixed inductor that can be used in a wide range of applications. This component has excellent temperature stability and low current loss, making it suitable for sensitive circuit designs. The RL855-121K-RC inductor operates by producing a magnetic flux that induces a counter electromotive force that opposes the applied current. This resistance is known as inductive reactance, and is measured in henries. The RL855-121K-RC inductor is ideal for use in RF, microwave, and high power applications.

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