RL855-391K

DC Resistance (DCR):	1.67 Ohm 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:	--
Q @ Freq:	--
Series:	RL855
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	410mA
Tolerance:	±10%
Inductance:	390µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Obsolete
Packaging:	Bulk

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IntroductionFixed inductors, also known as chokes, are passive components offering a high degree of electrical isolation and enabling current and voltage to be stored and released. The RL855-391K fixed inductor is one of the most widely used inductors, offering a wide range of applications and applications in radio and audio frequency (RF/AF) circuits. In addition, its compatibility with other components in the same frequency range makes it more desirable.Application Fields of RL855-391KThe RL855-391K fixed inductor is widely used in a variety of applications, including filtering, current limitation, coupling and impedance matching. It can be used for low-frequency AC circuits, such as audio amplifiers, as well as high-frequency RF circuits.In audio circuits, it can be used to eliminate high-frequency noise and maintain a consistent sound quality. The RL855-391K fixed inductor also has the advantage of not being affected by external temperature and humidity.In RF circuits, the RL855-391K fixed inductor can be used as a coupling device to connect two different circuits and prevent external signals from interfering with the system. Additionally, it is often used in impedance matching networks to ensure that the signals remain within the desired range.Working Principle of RL855-391KThe RL855-391K fixed inductor is a coil consisting of two or more turns of wire wrapped around a core. When an alternating current (AC) flows through the wire, a magnetic field is created by the coils. This magnetic field opposes any changes in the current and causes the voltage to remain constant.The RL855-391K fixed inductor can also be used to store and release electrical energy. When DC power is applied to the inductor, the current builds up and stores energy in the form of a magnetic field. When the current is terminated, the magnetic field collapses and allows the stored energy to be released in the form of a voltage. This process is known as inductive reactance.ConclusionThe RL855-391K fixed inductor is a versatile and widely used component offering many advantages in radio and audio frequency (RF/AF) circuits. It is useful for filtering, current limitation, coupling and impedance matching, and can be used in low-frequency AC circuits, high-frequency RF circuits, and audio circuits. Its working principle revolves around the creation of a magnetic field in response to an alternating current, allowing it to store and release energy as needed.

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