7447211472

DC Resistance (DCR):	5.1 Ohm Max
Height - Seated (Max):	0.591" (15.00mm)
Size / Dimension:	0.433" Dia (11.00mm)
Supplier Device Package:	--
Package / Case:	Radial - 4 Leads
Mounting Type:	Through Hole
Inductance Frequency - Test:	10kHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	410kHz
Q @ Freq:	--
Series:	WE-TIF
Shielding:	Unshielded
Current - Saturation:	430mA
Current Rating:	310mA
Tolerance:	±5%
Inductance:	4.7mH
Material - Core:	--
Type:	Wirewound
Part Status:	Active
Packaging:	Tray

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Overview

Fixed inductors are electrical components whose magnitude of inductance is generally nonadjustable and is determined by the physical construction of the device and its components. A 7447211472 miniaturized fixed inductors can be used in applications that require a limited inductance value. This type of inductor is commonly used in integrated circuits, inductor-capacitor filter networks, and voltage-regulated circuits, such as switching power supplies, DC/DC converters, and regulators.

Application Field

7447211472 Miniaturized Fixed Inductors are often used in applications such as display devices, mobile phones, and other consumer electronics. In a display device, miniaturized fixed inductors are typically used in a voltage-regulated circuit which stabilizes and limits signal output voltages to provide clear picture output. In mobile phones, miniaturized fixed inductors are commonly used in the power management circuit to regulate power levels in different operating modes. High current DC/DC converters and switching power supplies often rely on miniaturized fixed inductors to reduce the amount of electrical noise generated as well as reduce power losses. Other applications, such as pulse-triggered decoupling networks, snubber circuitry, and magnetic field sensing circuits, can also benefit from the use of miniaturized fixed inductors.

Working Principle

The simplified electrical model of a miniaturized fixed inductor consists of two components, an inductor and a resistor. When a current is flowing through the device, the inductor creates a magnetic field which stores energy in the form of a magnetic field. This field then creates an opposing voltage which limits the current flow. The resistor in the device dissipates the energy generated by the magnetic field. The larger the current, the harder it is for the inductor to generate its opposing voltage, thus increasing the amount of energy being dissipated by the resistor.To ensure the inductor is suitable for its intended application, its construction must be chosen carefully. The primary components of an inductor include the core material, the number of turns, and the core diameter. The core material is selected depending on the required inductance and resistance values, while the number of turns and core diameter determine the resistance of the device.The winding of strands and layers of wire play an important role in defining the resistance of the device. The wire is typically wound around the core material in multiple layers, forming a wiring coil. This winding process affects the inductance of the device as it forms distributed capacitance and resistance in the device.

Conclusion

7447211472 miniaturized fixed inductors are commonly used in applications which require a limited inductance value such as display devices, mobile phones, and other consumer electronics. The working principle of a miniaturized fixed inductor consists of two components, an inductor and a resistor, where the inductor generates a magnetic field which is opposed by a voltage, and a resistor dissipates the energy generated in the process. The primary components of the inductor are the core material, the number of turns, and the core diameter, while the winding of strands and layers of wire affects the resistance of the device.

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