SDR1045-221K

DC Resistance (DCR):	1.15 Ohm Max
Height - Seated (Max):	0.189" (4.80mm)
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:	6.4MHz
Q @ Freq:	15 @ 796kHz
Series:	SDR1045
Shielding:	Unshielded
Current - Saturation:	850mA
Current Rating:	720mA
Tolerance:	±10%
Inductance:	220µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IntroductionFixed inductors are components used to create a self-resonant frequency in a circuit. They are used in circuits that necessitate a precise control over frequency and current. The SDR1045-221K is a type of fixed inductor which has a wide range of application, including switching regulators, DC/DC converters, signal processing, clock generator circuits, digital circuits and low-frequency RF applications.ApplicationsThe SDR1045-221K is a type of fixed inductor which is highly suitable for use in low-frequency RF applications such as cellular base stations and wireless chargers. It is also useful for creating a stable voltage in circuits with high current flow. It can be used in switching regulators in order to increase the efficiency of the system by regulating the current and reducing heat losses. In addition, it is also used in DC/DC converters to boost output voltage. In signal processing circuits, it can be used for precisely controlling the frequency and amplifying signals. The SDR1045-221K is also useful for clock generator circuits, providing a stable and reliable frequency.Working PrincipleFixed inductors work by creating a self-resonant frequency in a circuit. In a simple circuit, it can be represented by two components: a source (which supplies current) and a variable resistor (which acts as a load). As current passes through the inductor, the flux created by the source will react with the core of the inductor, inducing a voltage. This voltage will depend on the amount of current, and it will create an additional current in the circuit. This additional current is a form of self-regulation of the circuit, and it provides a stable voltage and current even in the presence of changing loads.ConclusionThe SDR1045-221K is a type of fixed inductor that is highly suitable for a wide range of applications including low-frequency RF circuits, switching regulators, DC/DC converters, signal processing circuits, clock generator circuits and digital circuits. Its working principle is based on the induction effect, which facilitates current flow while providing a stable voltage and current regulation. It is highly recommended for use in circuits where precise control over frequency and current is needed.

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