4445-18K

Series:	4445
Packaging:	Bulk
Part Status:	Active
Type:	Toroidal
Material - Core:	Iron
Inductance:	270nH
Tolerance:	±10%
Current Rating:	1.4A
Current - Saturation:	--
Shielding:	Unshielded
DC Resistance (DCR):	100 mOhm Max
Q @ Freq:	80 @ 50MHz
Frequency - Self Resonant:	280MHz
Ratings:	--
Operating Temperature:	-55°C ~ 125°C
Inductance Frequency - Test:	50MHz
Mounting Type:	Through Hole
Package / Case:	Radial
Supplier Device Package:	--
Size / Dimension:	0.200" L x 0.100" W (5.08mm x 2.54mm)
Height - Seated (Max):	0.230" (5.84mm)

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Introduction
4445-18K is a type of fixed inductor. It’s designed for applications ranging from power conversion and solar inverters to home entertainment systems and other consumer electronics. In this article, we’ll explore the applications and working principle of 4445-18K fixed inductors. Applications
The 4445-18K fixed inductor is most commonly used in power conversion and solar inverters. These are devices that convert electricity from one form to another, such as from alternating current (AC) to direct current (DC), and vice versa. In power conversion, the 4445-18K inductor is used to store the energy in the form of a magnetic field, creating a steady current that is then sent out through the conversion process. This helps to reduce the fluctuations in the power output, ensuring a consistent flow of electricity. In solar inverters, the 4445-18K inductor is used to convert the direct current (DC) created by solar cells into alternating current (AC). This AC current is then sent out to appliances that require it, like microwaves, televisions, and more.The 4445-18K fixed inductor is also used in home entertainment systems and other consumer electronics. It helps to reduce noise by dissipating electrical signals, allowing for conversation and video streaming with low levels of external interference. Working Principle
The 4445-18K fixed inductor works in part thanks to the principle of magnetic induction. In magnetic induction, electric currents are created in a conductor when it moves through a magnetic field. This is what causes the 4445-18K inductor to store energy as a magnetic field.When a current flows through the inductor, the magnetic field created by the current induces another current in the opposite direction, creating an opposing force. This opposing force acts to limit the amount of current that can pass through the inductor, reducing the amount of noise generated by the system. The 4445-18K inductor also works on the principle of self-inductance. Self-inductance occurs when an electromotive force is applied to an inductor, creating a current that creates a magnetic field in the opposite direction. This opposing field creates an opposing force that further reduces the amount of noise.Conclusion
The 4445-18K fixed inductor is an essential component in power conversion and solar inverters, as well as home entertainment systems and other consumer electronics. It works thanks to principles like magnetic induction and self-inductance, storing electrical energy in the form of a magnetic field and limiting the amount of current that can pass through it. This helps to reduce noise in the system, allowing for more consistent power output and clearer conversations and video streaming.

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