MAMK2520HR22M

DC Resistance (DCR):	21 mOhm Max
Height - Seated (Max):	0.047" (1.20mm)
Size / Dimension:	0.098" L x 0.079" W (2.50mm x 2.00mm)
Supplier Device Package:	1008 (2520 Metric)
Package / Case:	1008 (2520 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	2MHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	MCOIL™, MA, H Type
Shielding:	Shielded
Current - Saturation:	7.5A
Current Rating:	5A
Tolerance:	±20%
Inductance:	220nH
Material - Core:	Metal
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Fixed inductors are components used in electronic circuits to store electrical energy in a magnetic field and then supply it back to the same circuit. Inductors in general are classified by their type, size, power rating, physical dimensions, material of construction, and accuracy of inductance value. The MAMK2520HR22M application field and working principle is as follows.

Application Field

The MAMK2520HR22M is a miniature-sized, surface-mount fixed inductor with lead-free termination as per RoHS directive (2002/95/EC). It has a rated current of 0.22 amperes. The MAMK2520HR22M can be used in applications such as DC-DC converters, low-noise signal lines, impedance matching circuits, switching mode power supplies, radio frequency circuits, and in semiconductor circuit modules.

Working Principle

Fixed inductors are based on the principle of electromagnetic induction. When electricity passes through the inductor, a magnetic field is created within the core material. This magnetic field will induce an electromotive force in the material when it is exposed to an alternating current or changing magnetic field.Inductors are made up of two parts; a core material and a wound coil of wire, usually copper. The core material usually consists of ferrite or powdered iron. Ferrite gives the inductor its inductance because ferrite offers much higher permeability than air. The varying number of turns of wire on the inductor defines the inductance value.Inductors can also be wound with a variety of materials. Magnetic core materials include ferrite and powdered iron both of which are popular choices due to their high permeability and low cost. The type of winding material influences the inductance, tolerance, temperature coefficient, and other characteristics of the inductor.Fixed inductors can be used in a variety of applications, including filters, balancing circuits, and energy storage. They are most commonly used in switched mode power supplies (SMPSs) in order to reduce ripple and electromagnetic interference (EMI). They can also be used in transformers, in storage capacitors, and even as a substitute for permanent magnets.

Conclusion

The MAMK2520HR22M is a miniature-sized, surface-mount fixed inductor with lead-free termination as per RoHS directive (2002/95/EC). It can be used in applications such as DC-DC converters, low noise signal lines, impedance matching circuits, switching mode power supplies, radio frequency circuits, and in semiconductor circuit modules. Fixed inductors are based on the principle of electromagnetic induction whereby a magnetic field is created within the core material when electricity passes through it and this induces an electromotive force in the material when it is exposed to an alternating current or changing magnetic field. Fixed inductors can be used in a variety of applications, including filters, balancing circuits, and energy storage.

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