S0402-22NJ1B

DC Resistance (DCR):	350 mOhm Max
Height - Seated (Max):	0.030" (0.76mm)
Size / Dimension:	0.043" L x 0.025" W (1.09mm x 0.64mm)
Supplier Device Package:	0402 (1005 Metric)
Package / Case:	0402 (1005 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	250MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	2.8GHz
Q @ Freq:	24 @ 250MHz
Series:	S0402
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	400mA
Tolerance:	±5%
Inductance:	22nH
Material - Core:	Alumina
Type:	Wirewound
Part Status:	Active
Packaging:	Bulk

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Fixed Inductors

Inductors, also known as coils, chokes, or reactors are passive electronic components that can store electrical energy in the form of a magnetic field when exposed to a current, and can release energy in the form of an electrical current when exposed to a changing magnetic field. Fixed inductors are components that store energy in a fixed or static manner, meaning that the current and voltage value it can protect or withstand is predetermined and made constant over the components lifetime, meaning the inductance and impedance is also fixed.It’s most common applications are filtering, decoupling and energy storage.The S0402-22NJ1B is one example of a fixed inductor, being a small non-shielded SMD metal housed component. It has an inductance of 22nH, a maximum DC resistance(DCR) of 45mohm, and a current of 0.63A. It’s also known for its low profile size of 1mm, allowing it to be used in designs requiring small footprints.

Application Field

The S0402-22NJ1B inductor is commonly used in all sorts of circuits, going from consumer electronic devices like cellphones, tablets, and other mobile devices, medical devices, as well as industrial monitoring devices. Thanks to its small form factor and the fact that it’s a surface mounted component, it’s ideal for applications where small and reliable components are required.As a low-profile inductor, the S0402-22NJ1B can reduce the board footprint in certain applications, as there is no need to have a bulky, large inductor. This also helps save on the cost of the component, and the size of the device. Additionally, the low-profile design helps keep the inductors internal temperature low, resulting in fewer faults in the circuit and a longer lifetime.

Working Principle

Inductors work off the principles of Faraday’s Law of Induction, which states that an electromotive force, or EMF, is induced in a conductive material when it is exposed to a changing magnetic field. In the case of a fixed inductor, the EMF is produced when current is applied. This EMF creates a magnetic field that in turn increases the current, creating a loop in which more current is being constantly generated.The S0402-22NJ1B is a non-shielded inductor, which means that the magnetic field produced by its coils is free to interact with its surroundings, increasing its efficiency and effect. Non-shielded inductors are used in applications with high power, low frequency transients, or high peak currents.The current yield of the S0402-22NJ1B is 0.63A, meaning that it is capable of handling that much current without exceeding its rated temperature or voltage. This makes it perfect for the demands of many electronic systems, as it won’t burn out the component and cause permanent damage.

Conclusion

The S0402-22NJ1B is a fixed inductor with a small size and low profile, making it ideal for any application requiring a small footprint. Thanks to its non-shielded coils it is perfect for applications that require high power, low frequency transients, or high peak currents. Its high current yield and low profile size make it a great choice for consumer electronic devices, medical devices, and industrial monitoring devices.

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