CDRH8D28NP-2R5NC Inductors, Coils, Chokes

Series:	CDRH8D28
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	--
Material - Core:	Ferrite
Inductance:	2.5µH
Tolerance:	±30%
Current Rating:	6.4A
Current - Saturation:	4.5A
Shielding:	Shielded
DC Resistance (DCR):	15.6 mOhm Max
Q @ Freq:	--
Frequency - Self Resonant:	--
Ratings:	--
Operating Temperature:	-40°C ~ 100°C
Inductance Frequency - Test:	100kHz
Mounting Type:	Surface Mount
Package / Case:	Nonstandard
Supplier Device Package:	--
Size / Dimension:	0.315" L x 0.315" W (8.00mm x 8.00mm)
Height - Seated (Max):	0.118" (3.00mm)

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CDRH8D28NP-2R5NC Fixed Inductors: Application Field and Working Principle

Fixed Inductors are standard components used for many different applications in the electronics industry. The CDRH8D28NP-2R5NC is a surface mount, axial leaded, molybdenum steel construction, wire-wound inductor able to withstand high temperatures and high operating frequencies. This particular type has a tolerance range of 1%, and the rated current range can go as high as 1.2A.

Application Fields

Typical applications for fixed inductors like the CDRH8D28NP-2R5NC include surge protection, Power Factor Correction (PFC) applications, power supplies, switched power supplies, EMI filters, DC/DC converters, active rectifiers, and RF circuits. In these applications, they are used to filter, resonate, store, or convert energy to the desired form.

Working Principle

An inductor is basically a coil consisting of multiple turns of wire. These turns are called windings, and it is these windings that generate an electromagnetic field when an electrical signal is applied to them. When electrical current passes through a fixed inductor, magnetic flux is created in a circular motion around the wire. This magnetic field induces an opposing voltage across the windings, thus causing a resistance to the flow of current, or in other words, a self-inductance.The magnitude of the self-inductance depends on a few factors, and these are determined by the inductor design. All inductors have an inductance value, and this is determined by the number of turns of wire, the physical size of the windings, and the permeability of the core material. It is this inductance value that determines the amount of opposition to the flow of current that the inductor provides.Another important factor is the Q-factor, or quality factor. This is a measure of the inductor\'s ability to sustain energy in the form of alternating current, and this value is determined by the internal and external loss mechanisms of the inductor. Higher Q-factors are generally desirable as they indicate a greater ability to resist current.The last factor to consider is the maximum rated current. This is typically equal to the current value necessary to achieve the rated inductance value. This value can be increased by increasing the number of turns of wire, but this will also reduce the Q-factor of the inductor.

Conclusion

The CDRH8D28NP-2R5NC is an example of a fixed inductor with high-temperature tolerance and a high operating frequency range. It is commonly used in a wide variety of applications such as power supplies, switched power supplies, and EMI filters, among others. Its working principle is based on the self-induced voltage created by the windings when current passes through them, which creates the opposition needed to generate a desired resistance. The factors impacting the self-inductance are the inductance value, Q-factor, and maximum rated current, determined by the number of turns of wire, the physical size of the windings, and the permeability of the core material.

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