S1812R-105F

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Fixed inductors are electrical components with metal coils, ferromagnetic cores, or hybrid components of both. They provide adjustable inductance within a certain range. S1812R-105F is a type of fixed inductor. This article will introduce its application field and working principle.

Application Field of S1812R-105F

Fixed inductors of S1812R-105F type is a type of surface mount power inductor with high power inductance that are generally used for applications like voltage regulators, DC-DC converters, interference suppression filters, and signal filtering. With its inductance range of 10 - 107nH, it can provide excellent high frequency inductance for products.

Working Principle of S1812R-105F

At the most basic level, a coil of wire is encased in a magnetic core and connected to a circuit, allowing for a DC current to be applied. This current will cause the core to generate a magnetic field, creating a voltage from the inductor that opposes the applied voltage. This opposition is expressed in Ohm’s Law, and is called inductive reactance. Moreover, the inductance rate can be corrected with the selection of different metal materials, geometry, and magnetic elements.

Depending on the application, different types of S1812R-105F are available. The inductance can be adjusted due to the selection of different materials, geometries, magnetic elements and the influence of DC Bias. Moreover, its working under small/large DC currents make it especially suitable for applications such as power supplies, PoE/Pol (Power over Ethernet/Power over LAN), high frequency choke and broadband common mode inductance.

The S1812R-105F has low DC resistance, small size and high-Q value with higher self-resonance frequency. It also has good thermal performance with 300VAC rated voltage and temperature range from -40 to +85℃. Due to its outstanding properties, S1812R-105F is suitable for use in computer peripherals, notebook computers, LCD TVs, etc.

Conclusion

In conclusion, S1812R-105F is ideal for applications where high power inductance is required. It provides adjustable inductance within its inductance range with low DC resistance and a high Q-value with high self-resonance frequency. It also has good thermal performance and a temperature range from -40 to +85℃, and is suitable for use in computer peripherals, notebook computers, LCD TVs, and other applications.

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