1008R-121J

DC Resistance (DCR):	100 mOhm Max
Height - Seated (Max):	0.085" (2.16mm)
Size / Dimension:	0.105" L x 0.095" W (2.66mm x 2.41mm)
Supplier Device Package:	1008
Package / Case:	2-SMD, J-Lead
Mounting Type:	Surface Mount
Inductance Frequency - Test:	25MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	750MHz
Q @ Freq:	40 @ 25MHz
Series:	1008R
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	1.225A
Tolerance:	±5%
Inductance:	120nH
Material - Core:	Ferrite
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed inductors, also called coils, are passive electronic components, mainly composed of an insulated wire, a core and a ferromagnetic material. The 1008R-121J is one example of a fixed inductor. The 1008R-121J is a surface mount device which measures 0.101 inches in length, 0.087 inches in width and 0.053 inches in height. It also has a capacity of 120nH, a rated current of 0.5A and a Q factor of 7.5.The application field of the 1008R-121J is an extremely wide one. It can be used for voltage regulation, surge protection, filtering of large currents, shielding, and limiting circuit outputs. The most common applications are in power supplies, power converters, RF antennas, digital systems, circuit protection, and other electronic circuits.The working principle of the 1008R-121J is relatively straightforward. Fixed inductors rely on Faraday\'s Law of induction. This law states that whenever a conductor is placed in a changing electric field, a current will be induced in it, which will then cause a magnetic field. This magnetic field therefore induces a voltage across the inductor coils, creating a phenomenon known as induction. In the case of the 1008R-121J, the electric current passes through the coils, creating a changing magnetic field. This changing magnetic field then induces a voltage across the coils, thus creating the desired effect.In conclusion, the 1008R-121J is a fixed inductor with a wide range of possible applications. Its size and rated current allow it to be used in a variety of applications, such as voltage regulation, surge protection, filtering of large currents, shielding, and limiting circuit outputs. It relies on Faraday\'s Law of induction to create a magnetic field, which in turn induces a voltage across the inductor coils. Knowing the basics of this device, one can use the 1008R-121J effectively in many types of electronics projects.

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