S1812-471J

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Fixed inductors are commonly used in electronic circuits and are composed of an inductor in which a coil is wound around a core made of iron or ferrite material. This core material is usually magnetically permeable. The S1812-471J is a fixed inductor from Coilcraft that offers excellent performance, reliability, and affordability.

The S1812-471J is a distinguishing inductor for power converting applications. It offers a surprisingly low DCR of 0.001 Ω and low core losses at high currents (up to 1 off - 4.7 mH). Also, it exhibits outstanding peak current ratings, capacitance and inductance stability over temperature, and low solderability leakage currents. This combination of parameters makes the S1812-471J an excellent choice for applications such as DC/DC converters and low-noise, high-efficiency switching power supplies.

The design of the S1812-471J also provides great advantages. Its magnetic core is made of material with excellent temperature stability. This material characteristics ensures high accuracy of device parameters, relying on a high degree of temperature stability. Thanks to its high frequency operation, the inductor is suitable for use in converters with switching frequencies up to 2 kHz.

Working principle of the S1812-471J is based on a standard inductor configuration. The main components of an inductor include a core material, a coil, and the terminals. In the case of the S1812-471J, the core material is ferrite, which is highly permeable and provides very low core losses. The energy is stored in this core material magnetically and that stored energy is then released into the circuit in the form of electromagnetic radiation. When an alternating current passes through the coil, the core material magnetically stores energy which is then released back into the circuit as the current changes direction.

In addition, the construction of the coil is another parameter that is tightly controlled to ensure the highest performance. This is because by varying the number of turns, the size of the conductor, and the winding techniques, the inductance, current rating, peak current rating, capacitance, and other characteristics of an inductor can be tailored for a specific application. The S1812-471J is designed with ultra-low profile windings, which provide excellent performance and reliability.

The S1812-471J is an excellent example of a fixed inductor with a wide range of applications. Its combination of an optimal design, low profile windings, low core losses, high peak current ratings, and low solderability leakage currents makes the S1812-471J an ideal choice for high current and low noise applications. Therefore, the S1812-471J is a great solution for DC/DC converters and power supplies.

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