IRF03ER471K

Q @ Freq:	65 @ 790kHz
Height - Seated (Max):	--
Size / Dimension:	0.170" Dia x 0.385" L (4.32mm x 9.78mm)
Supplier Device Package:	Axial
Package / Case:	Axial
Mounting Type:	Through Hole
Features:	--
Inductance Frequency - Test:	790kHz
Operating Temperature:	-55°C ~ 105°C
Ratings:	--
Frequency - Self Resonant:	2.25MHz
Series:	IRF
DC Resistance (DCR):	7.7 Ohm Max
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	126mA
Tolerance:	±10%
Inductance:	470µH
Material - Core:	Ferrite
Type:	--
Part Status:	Obsolete
Packaging:	--

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Fixed Inductors

A fixed inductor, commonly known as an inductor coil, is a passive device used to store electrical energy in the form of a magnetic field. It is commonly found in electronic circuits and is typically used in conjunction with a capacitor, resistor or diode to form an LC (inductor-capacitor) or RLC (inductor-capacitor-resistor) filter circuit. Fixed inductors are also used to shape electrical signals by controlling the rate of voltage/current changes in a circuit. The IRF03ER471K is a fixed inductor from Infineon Technologies.The IRF03ER471K has an inductance value of 4.71 uH and a current rating of 3.3 A. It can be used in power management circuits, signal conditioning circuits, as well as low- and high-frequency switching applications. It is a radial-mount inductor with a maximum DC resistance of 0.13Ω. It has a high rated inductance and possesses excellent DC thermal stability, making it an excellent choice for applications that require high performance.The working principle of an inductor is based on Faraday\'s law of induction. This law states that a changing magnetic field will induce an electromotive force (EMF) in a conductor. Inductors use this phenomenon to store electrical energy. When an alternating voltage is applied to an inductor, a time-varying magnetic field is created in its core, which induces an electric current in the inductor. The magnitude of this current is proportional to the rate of change of the applied voltage, and stores energy in the form of a magnetic field.The IRF03ER471K fixed inductor works on the same principle. It consists of a coil of insulated copper wire wound around a ferromagnetic core. When AC current passes through the wire, a magnetic field is created in the core, which induces a voltage proportional to the rate of change of the current. This voltage is given by Faraday\'s law of induction and can be used to store electrical energy.The inductance of the IRF03ER471K is a measure of how effectively it can store energy in the form of a magnetic field. The higher the inductance, the more effective the inductor. The IRF03ER471K has a high inductance value, making it an ideal choice for applications that require high performance.The IRF03ER471K can be used in a wide range of applications, from power management circuits to signal conditioning circuits. Its high rated inductance and excellent DC thermal stability make it an ideal choice for low- to high-frequency switching applications, making it the perfect choice for a variety of applications.

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