CW201212-2N8J

DC Resistance (DCR):	60 mOhm
Height - Seated (Max):	0.059" (1.50mm)
Size / Dimension:	0.083" L x 0.059" W (2.10mm x 1.50mm)
Supplier Device Package:	0805 (2012 Metric)
Package / Case:	0805 (2012 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	250MHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	6GHz
Q @ Freq:	32 @ 1GHz
Series:	CW201212
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	800mA
Tolerance:	±5%
Inductance:	2.8nH
Material - Core:	Ceramic
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

A fixed inductor, often simply known as an inductor, is an electronic component featuring a coil wrapped around a core. It is used to conduct an electrical current and are particularly useful for increasing or decreasing current in specific applications. An example of a fixed inductor is the CW201212-2N8J, which is used as a DC power filtering inductor.

Design

The CW201212-2N8J type of inductor features a ferrite core type material and is a wire-wound type. The ferrite core type has higher magnetic flux and higher inductance compared to equivalent types of inductors. It can also assist with noise suppression by suppressing spurious and transient noise, in power supplies. The wire-wound form provides higher current capability and better frequency characteristics.

Applications of the CW201212-2N8J

The practical, industrial applications of the CW201212-2N8J inductor can be seen in the following areas:

• Mobile/cellular phones
• Consumer electronics
• Industrial equipment
• Automotive electronics
• Audio equipment

The CW201212-2N8J inductor is ideal for use in DC power filtering and can be used to reduce noise in the power supply of these various applications.

CW201212-2N8J Working Principle

The working principle of a fixed inductor such as the CW201212-2N8J is based on Faraday’s Law of Induction. Faraday’s Law of Induction states that when a electric current flows through a conductor, it produces a magnetic field around the conductor.When current flows through a fixed inductor, a magnetic field is created and stored in its ferrite core which induces an opposing voltage. This voltage has an inverse effect on the current – by decreasing it as it passes. The effects of this can be seen in smoothing a DC power supply and removing any small current spikes, as well as its use as a filter in applications such as cell phones and consumer electronics.

Conclusion:

The CW201212-2N8J inductor is an example of a fixed inductor component which is used in many applications. Its ferrite core material and wire-wound form provide higher magnetic flux, higher inductance and better frequency characteristics, which makes it ideal for use as a DC power filter. The CW201212-2N8J influences the current passing through it using Faraday’s Law of Induction, allowing it to smooth the current passing through the device, as well as providing noise suppression.

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