P1812R-682G

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Fixed inductors, also known as chokes, are components designed to store energy by controlling the flow of electric current in a circuit. The P1812R-682G is a fixed inductor from Pulse Electronic Components, a leader in the manufacture of passive electronic components. The components are used in a wide range of applications, including power and audio supply, medical and automotive, audio and video, computer, communications, networking, and industrial control.

The P1812R-682G is a shielded ferrite core inductor with a 6.8mH inductance, a DCR of 13.7Ω max, and a rated current of 15.7A max. The component is designed to maintain its inductance across a wide range of frequencies, from 40kHz to 1MHz. It is constructed with a metal alloy casing, a ferrite core, and a copper wire windings.

The working principle of the P1812R-682G lies in the magnetic field generated by the interaction between the current-carrying conductor and the flux lines. The magnetic field is generated by the windings of the copper wire, which is encased in ferrite core material. This material creates a barrier to the passage of electric current, but allows magnetic fields to pass through. When current passes through the coil, it induces a magnetic field, which then links back to the coil, and a voltage proportional to the current is induced in the coil.

The P1812R-682G can be used in various types of circuits, such as linear regulators. Here, it is used as an input filter capacitor, which lowers the power supply noise. The inductor blocks high frequency noise, allowing it to pass through the input capacitor\'s capacitance, creating a low pass filter. The coil also helps to reduce the amount of ripple in the output voltage, providing a more uniform voltage signal.

The P1812R-682G can also be used as an output filter capacitor. Here, it is typically used in conjunction with a series of resistors and capacitors to create a notch filter. The resulting inductor-capacitor-resistor (LCR) network helps minimize the noise output from the circuit, providing a clean signal output.

The P1812R-682G has a wide range of uses, making it a versatile and reliable component. While it is designed mainly for power supply and audio applications, its capabilities can be extended to other areas as well. With its low DCR, high rated current, and wide range of frequencies, it is an ideal solution for many different types of applications.

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