DC Resistance (DCR):	350 mOhm
Height - Seated (Max):	0.201" (5.10mm)
Size / Dimension:	0.394" L x 0.394" W (10.00mm x 10.00mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	4MHz
Q @ Freq:	20 @ 796kHz
Series:	SRU1048
Shielding:	Shielded
Current - Saturation:	700mA
Current Rating:	800mA
Tolerance:	±30%
Inductance:	220µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Fixed inductors are passive electronic components that create a magnetic field when electricity flows through them. They are used in various electronic circuits to reduce cross-talk, improve signal quality, and reduce switching noise. One of the most commonly used fixed inductors is the SRU1048-221Y. This article will explain the application field and working principles of this component.

Application Field of the SRU1048-221Y

The SRU1048-221Y is a high-frequency surface-mount inductor. It\'s geometry and inductance allow it to operate at frequencies up to 1GHz. It is primarily used in RF circuits, such as amplifiers, filters, and oscillators. It can also be used in power circuits, where its relatively high inductance produces low resistance to current flow.The SRU1048-221Y is especially well-suited for use in mobile devices, such as cell phones and tablets, due to its small size and low profile. Its small size allows it to be mounted in spots where space is restricted. Its low profile ensures that interference from adjacent components is minimized.

Working Principles of the SRU1048-221Y

The SRU1048-221Y is a fixed inductor, meaning that its inductance is fixed and cannot be adjusted. When electricity passes through the inductor, a magnetic field is created. This magnetic field induces an electromotive force in the inductor, which can oppose the flow of electricity and cause a voltage drop known as a "back EMF." The magnitude of the back EMF is determined by the strength of the magnetic field and the inductance of the inductor.The SRU1048-221Y has a core material made of ferrite. Ferrite is a type of ceramic that has a high level of resistance to magnetization. This makes it well-suited for use in high-frequency circuits, as it reduces the chance of signal distortion. The SRU1048-221Y also has an improved air gap, which reduces the inductance and allows it to operate at higher frequencies.

Conclusion

The SRU1048-221Y is a fixed inductor designed for use in RF and power circuits. Its small size, low profile, and ferrite core make it ideal for use in mobile devices. Its improved air gap allows it to operate at higher frequencies with minimal signal distortion. Understanding the application field and working principles of the SRU1048-221Y is essential for any engineer working with the component.

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