4445R-25J

DC Resistance (DCR):	400 mOhm Max
Height - Seated (Max):	0.230" (5.84mm)
Size / Dimension:	0.210" L x 0.110" W (5.33mm x 2.79mm)
Supplier Device Package:	--
Package / Case:	Radial
Mounting Type:	Through Hole
Inductance Frequency - Test:	50MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	150MHz
Q @ Freq:	70 @ 50MHz
Series:	4445R
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	700mA
Tolerance:	±5%
Inductance:	1µH
Material - Core:	Iron
Type:	Toroidal
Part Status:	Active
Packaging:	Bulk

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Fixed Inductors

Fixed inductors are components used to store electrical energy in the form of magnetic fields. There are a variety of different designs available, which vary in terms of inductance, stability, size and type of core material. The 4445R-25J is a particular type of fixed inductor that is used in many different applications. The 4445R-25J is a high-performance, surface-mount inductor that has a wide range of applications. It features a 10uH inductance value, a ±30% tolerance level and a self-resonant frequency of 1MHz. It also has an operating temperature range of -55°C to +125°C and can handle up to 1.5A of peak current. The 4445R-25J is commonly used for a variety of power management applications such as dc-dc converters, voltage regulators and on-board battery charging. It can also be used in AC to DC power converters, RF transmitters and RF receivers, as well as in mobile telecommunications and signal processing systems. The main advantage of the 4445R-25J is its ability to store and release electrical energy at a controlled rate. This is due to the components ability to store magnetic energy in the form of a magnetic field around its core. As electrical current is passed through the circuit, it induces a magnetic field which can be stored by the inductor. The stored energy is then slowly released as a current flow back into the circuit. This phenomenon is known as inductance and is governed by Faraday’s Law of Induction. According to this law, an electromotive force is induced in a conductor as the surrounding magnetic field changes. This force creates a current flow through the inductor, and the strength of the current is determined by the amount of magnetic flux that is stored in the inductor. The magnetic field is generated when electrical current passes through the turns of wire that make up the inductor. This current will then induce a voltage in the winding which causes an opposing current, known as a counter EMF, to flow through the inductor. When current is passed through the circuit, the counter EMF will oppose the current flow, slowing it down and limiting it to a certain value. This phenomenon is known as impedance and can be used to control the current in the circuit. In summary, the 4445R-25J is a type of fixed inductor that is designed for power management applications. It is capable of storing and releasing electrical energy at a controlled rate due to its ability to store magnetic energy in the form of a magnetic field. This is governed by Faraday’s Law of Induction and the counter EMF that is induced in the winding of the inductor.

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