3443R-20K

DC Resistance (DCR):	10 mOhm Max
Height - Seated (Max):	0.600" (15.27mm)
Size / Dimension:	0.872" L x 0.516" W (22.14mm x 13.10mm)
Supplier Device Package:	--
Package / Case:	Radial
Mounting Type:	Through Hole
Inductance Frequency - Test:	1kHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	3443R
Shielding:	Unshielded
Current - Saturation:	8.9A
Current Rating:	12.5A
Tolerance:	±10%
Inductance:	6.8µH
Material - Core:	Ferrite
Type:	--
Part Status:	Active
Packaging:	Bulk

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Introduction to Fixed Inductors

Fixed inductors are electrical components designed to resist the passage of electric current. Commonly used in devices such as televisions, laptops and radios, fixed inductors are composed of thin metallic coils, a magnetic core and an outer shell of insulation material.

The 3443R-20K Application Field and Working Principle

The 3443R-20K is a small surface-mount inductor designed to increase the current and voltage of an electrical circuit. This inductor is commonly used for high-frequency filtering applications, and is suitable for mobile phone base station circuit applications as well as for computer and laptop electrical circuits.The 3443R-20K has a rated inductance of 20 nano-henries (nH), and is made up of a magnetic core, a coil of wire and an insulating enclosure. The magnetic core is made of ferrite, which, due to its permeability, affects the amount of current and voltage that the inductor can handle. This inductor is typically used in high-frequency circuits, as it can operate at frequencies between 1MHz and 5MHz.The working principle of the 3443R-20K is based on Faraday\'s Law of Induction. This law states that a changing magnetic field creates an electrical field, which in turn induces a current in the wire coil. As current travels through the inductor, it is transformed into a magnetic field that is proportional to the amount of current in the circuit. This magnetic field affects the permeability of the ferrite core, thus resulting in changes of current and voltage in the circuit.

Conclusion

The 3443R-20K is a device belonging to the larger category of fixed inductors. It is designed to resist the passage of electric current, and is commonly used in high-frequency filtering applications in both computer and laptop electrical circuits and mobile phone base station circuits. The working principle of this inductor is based on Faraday\'s Law of Induction, which states that a changing magnetic field creates an electrical field that induces current in a wire coil. This phenomenon changes the permeability of the ferrite core, thus resulting in changes of current and voltage in the circuit.

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