4445-01K

DC Resistance (DCR):	20 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:	150MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	1GHz
Q @ Freq:	60 @ 150MHz
Series:	4445
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	3A
Tolerance:	±10%
Inductance:	10nH
Material - Core:	Iron
Type:	Toroidal
Part Status:	Active
Packaging:	Bulk

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Fixed IndutorsThe 4445-01K application field and working principle are two topics related to fixed inductors that can help in the development of new electronic designs. Fixed inductors are widely used in electronic circuits and can be formed by various types of inductive elements, including air cores, ferrite cores, wire-wound, and dry plates. Fixed inductors play an important role in the fields of radio frequency communications, signal processing, robotics, and telecommunications.Fixed inductors can be characterized by their self-inductance, which is determined by the construction of the inductor. Generally, self-inductance is the property of a coil of wire or other conductor that induces an electromotive force (EMF) when a current flows through it. The EMF produced or overcome by the self-inductance is proportional to the rate of change of current in the circuit. Self-inductance also causes an opposing force to changes in current, which is measured in henrys.The use of fixed inductors in radio communication is well established. These inductors are used to provide impedance matching between the transceiver and its antenna. Impedance matching ensures that the maximum transfer of energy from the transmitter to the antenna is achieved.A primary application of fixed inductors in signal processing is in the form of variable inductors. These are used in the form of adjustable RF filters in a wide variety of electronic communication systems and in the form of resonance-tuned circuits. The adjustable RF filters are adjusted to match the impedance of different frequencies that may exist in the circuit and change with frequency. The adjustable inductor is used to create variable inductance values in order to accommodate for these changes in frequency.Fixed inductors are also used in robotics applications. This technology is used to detect changes in magnetic fields and to measure the force being applied to a particular part of the robot. A common robot application is in the form of a variable inductor used in servo motors. In a servo motor, the inductor can be adjusted to sense changes in the position of the motor and respond accordingly.In telecommunications, fixed inductors are used for impedance matching. The impedance matching ensures that the maximum transfer of information from one device to another is achieved, while reducing the effect of interference that can be caused by external sources. Fixed inductors are also used in the form of aerial trap coils that help to improve the reception of short-range radio signals.The construction of fixed inductors can take many forms, including air cores, ferrite cores, wire-wound, and dry plates. Air core inductors are constructed of wire wound on a non-conducting self-supporting cylinder and provide the most simple and affordable form of inductor. Ferrite core inductors are constructed using a coil of wire around a ferrite core material, which has magnetic properties that alter the inductance of the coil. Wire-wound inductors are typically made of copper windings and a variety of other materials, while dry plate inductors are constructed of a thin sheet of electrically conductive material.The 4445-01K application field and working principle are important to understand to properly evaluate the various types of fixed inductors available for use in a particular design. While different types of inductors may have slightly different features, all inductors rely on the same basic principles of self-inductance and EMF production to provide impedance matching, RF filtering, and other applications. Understanding the application field and working principle of fixed inductors can allow engineers and designers to properly evaluate and select the right inductor for their projects.

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