AIRD-06-821K

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Fixed inductors have been widely used in various circuits and applications to limit current and act as a low-pass filter. The AIRD-06-821K is an example of such a component, found in many different industries and applications where cost, size, and power consumption are all considerations. The AIRD-06-821K fixed inductor is a small, cylindrical, encapsulated component, measuring 8.2 mm in diameter and 7 mm in height, respectively. It is capable of handling up to 2.5 amps of current and has a rated voltage of 25V DC.

This component falls into the category of radial inductors due to its physical shape, as the two leads that are used to connect it to the circuit run out from either side of the inductor along its cylinder\'s length. The AIRD-06-821K is a surface-mount component, meaning it is built and designed to be soldered on the top side of the printed circuit board (PCB) by reflow, providing a reliable seal in a limited space. Additionally, the AIRD-06-821K comes with a coating of flame retardant epoxy, adding to its reliability and making it compliant with standards such as the UL94V-0 and the IEC 60747-5-5.

The AIRD-06-821K is most commonly used in low-frequency switching applications such as dimmers in dimmer packs, and AC-DC and DC-DC converters, as well as digital-residential systems. This could be related to its rapid current-delivery capability, its low DC resistance values, and its high self-resonance frequency which is above the 1 MHz mark.

The AIRD-06-821K works on the principle of inductance, as it stores energy in a magnetic field whenever current passes through the inductor. As the current passes, a voltage is induced that is opposite in polarity to the applied voltage, causing an increase in the current\'s opposition as the inductor tries to maintain the same amount of current that was initially present. Therefore, there will be a drop in the voltage drop across the inductor, providing a resistor-like effect. This can be very useful when regulating current, as a constant current can be maintained even in the presence of variable input voltages.

This fixed inductor can also be used as part of a low-pass filter, as its quality factor (Q) decreases as the frequency of the AC signal passing through it increases. This provides an effective way of removing the unwanted high-frequency portions of the signal, allowing for a more accurate output.

Overall, the AIRD-06-821K fixed inductor is an invaluable component in a wide range of different applications. It can be used to regulate current safely, due to its rapid current delivery capability, and low DC resistance values. Additionally, it can also be used as part of a low-pass filter due to its decreasing quality factor (Q) as the frequency of AC signals passing through it increases. This makes it an ideal choice for many different industries and applications where cost, size, and power are all considerations.

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