3443R-58K

DC Resistance (DCR):	420 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:	1.35A
Current Rating:	1.95A
Tolerance:	±10%
Inductance:	270µH
Material - Core:	Ferrite
Type:	--
Part Status:	Active
Packaging:	Bulk

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Introduction

Fixed inductors, more commonly known as coils, are used to store and release electrical energy for a specific task or application. In the electronics industry, they are used to filter, amplify, or shape electrical signals. Fixed inductors are often used in electronic circuits such as power supplies, filters, amplifiers, and communications equipment.The 3443R-58K is a fixed inductor from Coilcraft, a manufacturer of high-quality, high-reliability inductors and transformers. The 3443R-58K is an SMT power inductor coil with high current capability and excellent EMI suppression. It is an inexpensive and efficient solution for power supply, DC/DC converter, and other power applications.

Application Field and Working Principle

The Coilcraft 3443R-58K is a high-current, fixed inductor that is used to suppress EMI interference in power supply applications. It consists of a ribbed copper coil wound around a ferrite core. This configuration minimizes the effects of EMI noise and also helps reduce inductance losses. The inductor can handle currents up to 8 amps and has a saturation current of 5.8 amps.The main application of the 3443R-58K is in filtering power supplies and DC/DC converters. The inductor functions to reduce switching noise generated by high current circuits, as well as limiting EMI noise. It is designed to be used in high current circuits, such as motor control and power switching applications.The 3443R-58K is also used to filter digital VOIP and broadband signals, as well as in switch-mode power supplies. The inductor is designed to reject noise and reduce electrical interference from the power supply and other sources. The high current capability of the 3443R-58K makes it well-suited for filtering sensitive signals.The working principle behind the 3443R-58K is based on the concept of inductance. Inductance is the ability of an electric circuit to store magnetic energy. When a current is applied to an inductor, it creates a corresponding magnetic field, which stores energy in the form of magnetic flux. When the current is removed, the magnetic field collapses, releasing the stored energy.The 3443R-58K uses this concept to limit EMI noise and reduce ripple in power supplies and other high current circuits. The inductor functions to filter out high frequencies and low frequencies. The high frequency signals are attenuated by the ferrite core, while the low frequencies are filtered out by the coils. In this way, the unwanted noise is reduced, and the desired signal is preserved.

Conclusion

The 3443R-58K is a fixed inductor from Coilcraft that is used to suppress EMI interference in power supply applications. It consists of a ribbed copper coil wound around a ferrite core, which increases its current handling capability and minimizes inductance losses. This inductor is used in high current circuits, such as motor control and power switching applications. It is also used in switching power supplies and digital VOIP and broadband signals. The working principle behind the 3443R-58K is based on the concept of inductance and it is designed to reject noise and reduce electrical interference in power supply circuits.

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