DR125-681-R

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Fixed inductors are electro-magnetic components designed to provide a fixed value of inductance. In most cases they generally consist of wound copper wire or ferrite cores. Fixed inductors are essentially used to provide or store electric energy through the induction of magnetic fields. They are used in many types of passive electronic circuits such as filtering, coupling, decoupling, shielding, and bias applications.

One specific example of a fixed inductor is the DR125-681-R. This inductor is a miniature radial inductor designed for SMT assembly and meets the requirements for RFI/EMI suppression in consumer electronic applications. The DR125-681-R offers low DC resistance so less power is lost to heat and can withstand reflow soldering temperatures. This type of inductor has a distributed gap construction with an non-oriented core, providing higher inductance values than the standard construction.

The DR125-681-R has an application field in consumer electronics, specifically entertainment equipment such as radios and televisions. It is used for EMI/RFL suppression and also provides suppression of high frequency noise associated with the switching of semiconductors. This inductor is able to effectively suppress noise by its extremely high impedance at a specified frequency.

The working principle of the DR125-681-R is based on Faraday’s law of induction, which states that an electrical current can induce a magnetic field in nearby conductive material. When current is applied to the inductor, the magnetic field created causes the current to be partially contained within the inductor. This creates a back-emf, which opposes the current and causes energy to be stored or produced in the form of stored magnetic field energy. This magnetic energy can then be used to provide inductive reactance or impedance to circuits where high-frequency noise is occurring.

Due to its application field and working principle, the DR125-681-R inductor can be classified under fixed inductors. Fixed inductors are passive electronic components that are ideal for EMI/RFI suppression, low frequency energy storage, filtering, and other related applications. The DR125-681-R inductor is a type of fixed inductor that offers high performance while managing costs effectively.

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