0925-393J

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Fixed inductors, also known as drder inductors, are a type of electrical component that stores electrical energy in the form of a magnetic field. The magnetic field is created by passing electric current through the inductor. The core material of the inductor, usually a ferrite or iron, is normally saturated in the magnetic field created by the current. The inductor acts as an energy store for the electric current passing through it. As the current changes, so does the magnetic field associated with the inductor.

The 0925-393J models are fixed inductors that are typically used in DC-DC converters and other critical power electronic applications. These models are composed of multiple layers of insulated windings with an electrical lead that is coated in a silicone insulation to reduce noise and minimize any contact with the inductor. The insulation is wrapped around the coil and soldered at the ends of the coil to the electrical lead.

The working principle of these fixed inductors is simple. The inductor has two terminals, a start and an end, and when a direct current passes through the inductor, what is known as a “back EMF” is generated, this is an opposite voltage to the current. This opposing voltage opposes any further change in the current, thus stabilizing the build-up of the magnetic field associated with the inductor. This back EMF then continues to oppose the passing current until the current drops or shifts to another direction. This effect of stabilizing the current is known as “inductive reactance”.

Typically, the inductance of the 0925-393J model ranges from 2.2 to 10.5 mH (millihenrys). The peak current of the model is 3.5A, while the rated current is 0.7A. The RMS current is 0.5A, with an impedance of 3.2 ohms. The voltage-drop is also specified, and this should typically not exceed 0.30VCD with a frequency of 120KHz. The insulation of the models is rated to a planar temperature of 250 degrees Celsius, while the hot spot temperature should not exceed 100 degrees Celsius.

In terms of size, the models measure 0.119 inch high by 0.150 inch wide by 0.150 inch thick. The weight of the models is 0.25 ounces and the operating temperature range is from -20 to 85 degrees Celsius. These fixed inductors operate best within the frequency range of 15K Hz to 200K Hz with a maximum efficiency of 90%.

The aforementioned 0925-393J models have been designed specifically to handle transient currents in a number of critical applications. These include DC/DC converters, flyback converters, off-line power supplies, and AC/DC adapters. In addition, they might be used for reducing the noise generated by switching AC/DC power converters.

In summary, 0925-393J are fixed inductors which are widely used in a variety of critical power electronic applications due to their ability to store and release energy. They work on the principle of generating back EMF in order to stabilize the current passing through the inductor, resulting in a reduction of interference and noise. The voltage-drop is specified and should not exceed 0.30VCD with a frequency of 120KHz. Additionally, they are relatively small, weighing 0.25 ounces, and operate at a number of temperatures ranging from -20 to 85 degrees Celsius. They also come with good insulation rated to a planar temperature of 250 degrees Celsius, while the hot spot temperature should not exceed 100 degrees Celsius. In conclusion, the 0925-393J models are fast becoming a key component in critical power electronic designs due to their reliability and performance.

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