S0402-27NF2S

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Fixed inductors are an essential component in many electronic circuits. The S0402-27NF2S is one of the more commonly used inductors due to its compact size and reliable performance. This article will discuss the application field and working principle of the S0402-27NF2S fixed inductor.

The S0402-27NF2S is a thin-film, surface-mounted, 0402 package size inductor. It has a resistance range of 27nH and the current range is from 100 mA to 500 mA. It has a low profile of 0.37 mm and is RoHS compliant. This inductor is ideal for deflection circuit, current sampling circuit, and load circuit of power diagnosis circuit in digital television, mobile phones, and other small electronic equipment.

The working principle of the S0402-27NF2S fixed inductor is based on electromagnetic induction. It works by using a varying electric current to induce a magnetic field within a coil of wire. When the electric current moving through the wire is changed, the magnetic field changes as well and a corresponding voltage is created. This voltage is proportional to the rate of change of the electric current and is colloquially known as “back-EMF”. This back-EMF voltage opposes the source voltage and helps limit the main current according to the demands of the circuit.

The S0402-27NF2S inductor also utilizes an iron core to increase its inductance. The iron increases the number of lines of flux associated with the inductor, thereby increasing the amount of back EMF. This increase in back EMF decreases the total current flowing through the inductor, allowing the power circuitry to operate under lower stress conditions.

Aside from current limiting, the S0402-27NF2S inductor is also useful for noise suppression. Inductors block high frequency noise, allowing only lower frequency signals to pass through. This is useful for filtering noise from audio and data signals, allowing them to arrive at their destination free from interference.

In summary, the S0402-27NF2S is a fixed inductor with a resistance range of 27nH and current range of 100 mA to 500 mA. It is commonly used in deflection circuits, current sampling circuits, and load circuits of power diagnosis circuits in digital television, mobile phones, and other small electronic equipment. The inductor\'s working principle is based on electromagnetic induction, with an iron core that increases its inductance and helps limit the current flowing through it. It is also useful for noise suppression, filtering out high frequency noise from audio and data signals.

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