SP1812R-392K

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Fixed inductors are electronic components that are designed to supply a steady current to electric circuits, to inductively store energy, and to provide adjustable reactance. The SP1812R-392K is a fixed inductor of type 1812 used to store energy in the radio frequency (RF) range. It is surface mount type, with low profile and small size.

The physical characteristics of the inductor make it suitable for a variety of applications. It has a leadless construction, a 1210 package size (3.2mm×2.5mm), and is fully shielded. The inductance range is from 0.390µH to 0.392µH and the maximum rated current of the inductor is 0.4A. Its operating frequency range is 140 MHz to 300 MHz. The high self-resonance frequency is 5.3GHz which is ideal for RF applications. Additionally, it is constructed with a molded-in ferrite body and a gold-plated solderable terminal for superior conductivity and low RF loss, making it an ideal choice for antenna matching.

The inductor works on the principle of Faraday’s law of induction. When a current flows through a conductor, a magnetic field is created around it. This magnetic field, in turn, induces a current in another conductor in the vicinity. This induced current is known as the induced EMF. Thus, when a signal is sent to a coil, the current in the coil creates a magnetic field, which induces a current in the secondary winding. This energy is then stored in the form of a magnetic field in the inductor. This is known as electromagnetic induction.

SP1812R-392K has multiple applications in various RF fields. It can be used in wideband communication receivers, wireless LAN applications and other RF ICs. It can also be used for antenna matching to reduce the return loss, improve system efficiency and reduce system noise. Furthermore, it can be used in Automated Meter Reading (AMR) systems, wireless audio systems, and as a low pass filter in the RF front end. By combining with other components, the SP1812R-392K can form useful circuits for a wide range of applications.

In short, the SP1812R-392K is an ideal choice for many RF applications. It has a small package size, high self-resonance frequency and excellent shielding properties, and is suitable for use in a variety of scenarios. It is also easy to handle, making it suitable for use in tight spaces and enclosures. Combined with its good electrical characteristics, the SP1812R-392K makes it a perfect solution for energy storage and antenna matching in RF systems.

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