SDR0703-221ML

Series:	SDR0703
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Wirewound
Material - Core:	Ferrite
Inductance:	220µH
Tolerance:	±20%
Current Rating:	180mA
Current - Saturation:	280mA
Shielding:	Unshielded
DC Resistance (DCR):	3 Ohm Max
Q @ Freq:	31 @ 796kHz
Frequency - Self Resonant:	7MHz
Ratings:	--
Operating Temperature:	-40°C ~ 125°C
Inductance Frequency - Test:	100kHz
Mounting Type:	Surface Mount
Package / Case:	Nonstandard
Supplier Device Package:	--
Size / Dimension:	0.256" L x 0.177" W (6.50mm x 4.50mm)
Height - Seated (Max):	0.106" (2.70mm)

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Fixed Inductors Fixed inductors are components whose inductance value remains unchanged after the component is soldered into a circuit. They are often used in different applications, such as power supplies, telecom, medical, as well as audio/video field, among others. Their primary purpose is to limit current flow during various operations. The most common types of fixed inductors are the air-core, powdered-iron, ferrite-core, multilayer, and toroidal inductors.One of the most common types of fixed inductors is the SDR0703-221ML. It is a surface-mount, non-shielded fixed inductor that belongs to the SDR series. It is used by various manufacturers all around the world because of its excellent performance and dependability.The SDR0703-221ML is a radial, surface-mount fixed inductor with a size of 7.3 x 3.2 mm. It features a ferrite core, and is suitable for use in a wide variety of applications, including power supplies, telecom, medical, and audio/video. Its inductance value ranges from 0.220 to 0.685 µH. It has a DC resistance of 9.5 mΩ to 24 mΩ, a current rating of 40 A, and an operating temperature range of -40°C to 125°C.The SDR0703-221ML provides excellent efficiency and reliability. Its ferrite core material is specially designed and optimized for high-frequency, high-current applications. It also has a low profile, which allows it to fit in tight spaces. Additionally, its surface-mount design allows for easy installation and assembly.The working principle of a fixed inductor is based on the basic physical law that states that an electric current produces a magnetic field. An inductor is composed of a coil of copper wire, around which a magnetic field is generated when a current is passed through it. This stored magnetic field, or inductance, resists changes in the current. Thus, when a fixed inductor is installed in a circuit, it prevents the current from changing too quickly and limits the current extensions in the circuit.In the case of the SDR0703-221ML, the applied current is regulated by the ferrite core material, and the capacitive resistance within the inductor. The ferrite core is responsible for limiting the flow of the current, while the capacitive resistance keeps the current from oscillating and maintaining the inductance value.The SDR0703-221ML is a highly reliable and efficient fixed inductor. It is ideal for use in many different types of applications, such as power supplies, telecoms, medical, and audio/video, and many others. Its small size and surface-mount design make it ideal for installation in tight spaces, while its ferrite core material ensures high-efficiency and consistent performance. This makes it the perfect choice for any type of application where accuracy and dependability are required.

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