CIG21W3R3MNE Inductors, Coils, Chokes

Shielding:	Shielded
Size / Dimension:	0.079" L x 0.049" W (2.00mm x 1.25mm)
Package / Case:	0805 (2012 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	1MHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
DC Resistance (DCR):	250 mOhm
Series:	CIG21W
Current - Saturation:	--
Current Rating:	730mA
Tolerance:	±20%
Inductance:	3.3µH
Material - Core:	--
Type:	Multilayer
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed InductorsInductors are components designed to provide linear inductance in electrical circuits. They are widely used in numerous applications from audio to power distribution and filtering. Fixed inductors are non-adjustable inductors whose inductance value is predetermined. The CIG21W3R3MNE is a type of fixed inductor suitable for a variety of uses.Application FieldAs one of the highest power handling inductors on the market, the CIG21W3R3MNE is primarily used in high wattage power systems. Its power dissipation characteristics suit it for a range of power supply development needs, such as industrial and automotive power converters. It is also widely used in various DC-DC converters, like isolated and non-isolated phase shift and pulse width modulation.Design and ConstructionThe CIG21W3R3MNE is constructed using two copper coils wound simultaneously over a ferrite core. Its structure minimizes core losses and provides superior thermal characteristics, allowing for a cooling effect when current is passed through it. This helps dissipate the heat generated by the inductor, resulting in the highest current-handling capabilities available. Furthermore, its design also ensures a high inductance value, with maximum ratings of up to 21 nano-henries at higher temperature ratings.Working PrincipleThe working principle of the CIG21W3R3MNE is based on the phenomenon of electromagnetic induction. Whenever an electric current passes through the inductor, it creates a magnetic field around the component. This magnetic field, in turn, induces a voltage in the inductor that is proportional to the rate of change of current. This phenomenon is often referred to as “eletromagnetic induction”, which is the basis of the CIG21W3R3MNE\'s working principle.As such, the inductor produces a counter-emf (induced voltage) that opposes changes in the current in the circuit. This resistance prevents sudden changes in the current by providing a smooth transition. Moreover, this leads to an increase in the voltage holding capacity of the component, as its self-generated back EMF increases proportionally with the amplitude of the current.Signal FilteringThe CIG21W3R3MNE is also widely used in signal filtering applications in order to reduce the electromagnetic interference (EMI) generated by the current passing through the circuit. Its inductance properties make it ideal for this application, as it can attenuate signals with high frequency components, providing a sufficient level of EMI shielding.In addition to its signal filtering capabilities, the CIG21W3R3MNE also offers out-of-phase compensation, which is advantageous for stabilizing power supplies. This feature helps to protect the circuitry from spikes and surges, as well as to reduce the losses sustained when dissipating energy as heat.ConclusionThe CIG21W3R3MNE is a type of fixed inductor suitable for use in a wide range of applications, from power supplies to high wattage power systems. Its design features two copper coils wound around a ferrite core, enabling it to dissipate heat and handle high current levels. Its working principle, which is based on the phenomenon of electromagnetic induction, provides the component with its beneficial properties, such as signal filtering and out-of-phase compensation. As such, the CIG21W3R3MNE is one of the most efficient inductors available on the market.

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