S0402-56NF2B

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The S0402−56NF2B device belongs to the family of fixed inductors, which have various applications depending on the specifications of the device itself.

Fixed inductors function primarily as electrical filters that transform alternating current (AC) into direct current (DC) or vice versa. They are available in a variety of forms, with inductances ranging from a few microhenries up to a few henries, and core materials ranging from ferrite to iron. The inductance value is usually stated in the title of the product.

The S0402−56NF2B is a surface-mount inductor designed for automotive applications, offering a shield design that provides high-frequency suppression and low-loss performance. The device features a low profile height and provides excellent EMI shielding, along with great board density.

In terms of physical dimensions, it measures just 0402 inches (1.02 by 0.6 mm). It has an inductance range of 2.8 to 56 nH ± 10% and a typical current rating of 150 mA. It has an operating temperature range of -55 to 155 °C and is RoHS compliant.

Internally, it consists of a printed wire wound structure whose inductance is determined by the core material, wire diameter and number of turns of the coil. Its magnetic core is surrounded by a body of plastic, insulation material or ferrite. The metal shield is used to reduce the capacitive reactance.

Its most common application is as an EMI filter for noise suppression in automobiles, medical, military, telecom, and other automation applications. It can also be used as a damping element in filters and delay circuits, and is employed for pulse shaping, forming low-pass and high-pass filters.

In terms of working principle, fixed inductors effectively reduce the passage of high-frequency stray signals in systems, thus making them more resistant to noise interference. They function by transforming AC energy into DC energy and vice versa, and by providing an impedance to direct current. This enables devices to filter out noise to create a more stable supply of current.

The S0402−56NF2B device from the family of fixed inductors is a great choice for automotive applications in need of high-frequency suppression and low-loss performance. Its small form factor and excellent EMI shielding makes it a great option for boards with limited space. Furthermore, it is RoHS compliant and offers reliable performance over a wide temperature range.

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