LGJ7045TS-680MR75-H Inductors, Coils, Chokes

Series:	LGJ
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Wirewound
Material - Core:	Ferrite
Inductance:	68µH
Tolerance:	±20%
Current Rating:	760mA
Current - Saturation:	750mA
Shielding:	Shielded
DC Resistance (DCR):	270 mOhm
Q @ Freq:	--
Frequency - Self Resonant:	--
Ratings:	AEC-Q200
Operating Temperature:	-40°C ~ 125°C
Inductance Frequency - Test:	100kHz
Mounting Type:	Surface Mount
Package / Case:	Nonstandard
Size / Dimension:	0.276" L x 0.276" W (7.00mm x 7.00mm)
Height - Seated (Max):	0.177" (4.50mm)

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IntroductionThe LGJ7045TS-680MR75-H fixed inductor is a basic electronic device used to store and control energy in the form of electrical current. It is made up of two coils of wire wound around a core material, usually of iron, and is used in various applications including power supply reject filters, DC/DC converters, and RF applications. In this article, we will discuss the application field and working principle of the LGJ7045TS-680MR75-H fixed inductor.Application FieldThe LGJ7045TS-680MR75-H fixed inductor is mainly used in power supply reject filters, DC/DC converters, and RF applications. In power supply reject filters, the inductor acts as a low-pass filter and helps to eliminate the noise, ripple, and other effects caused by interference between power lines and other appliances in the vicinity. It is also used in DC/DC converters, where it helps to convert AC power to DC power, providing a stable DC voltage output. In RF applications, the inductor acts as an inductive reactance and helps to attenuate high-frequency signals without affecting the lower frequency signals.Working PrincipleThe working principle of the LGJ7045TS-680MR75-H fixed inductor is based on Faraday’s law of induction. This law states that whenever a current-carrying conductor is placed in a changing magnetic field, an emf or induced voltage is generated in it. This induced voltage opposes the applied voltage, and is referred to as the counter emf. As the current passing through the inductor changes, the counter emf also changes.When a direct current is passed through the LGJ7045TS-680MR75-H fixed inductor, the magnetizing force induced by the current in the core material produces a magnetic field (flux) around it, thus causing a back emf in opposition to the applied voltage. This back emf opposes the flow of current through the inductor and delays the flow of current, leading to a decrease in the rate of rise of the current. This effect of inductor is known as “inductive reactance”. The greater the inductance of the device, the higher the inductive reactance and the greater the opposition to changes in the applied voltage or current.ConclusionThe LGJ7045TS-680MR75-H fixed inductor is a useful electronic device for various applications including power supply reject filters, DC/DC converters, and RF applications. It works according to Faraday’s law of induction and is able to attenuate high-frequency signals without affecting the lower frequency signals. In this article, we discussed the application field and working principle of the LGJ7045TS-680MR75-H fixed inductor, and how it is used in various applications.

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