SDR0604-821KL Inductors, Coils, Chokes

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Fixed Inductors are among the most versatile and useful components in any electronic circuit design. One example of a fixed inductor is the SDR0604-821KL, which is suitable for applications in both low and high frequency applications. This article will describe the applications fields and working principle of this component.

Understand the Component

The SDR0604-821KL is a Radial Leaded Inductor, with a rated current of 821 milliamps and a rated inductance of 3.938 microHenries. It also features an operating temperature of -20 to +85 degrees Celsius. Such specifications make it suitable for a wide range of applications, including DC-DC conversion, biological monitoring, power supplies and filters.

Applications and Uses

One of the most common applications of the SDR0604-821KL is in DC-DC converters. Such converters are used in the power supply of many electronic devices, where the SDR0604-821KL acts as a filter component, helping to reduce noise as the voltage passes through it. Elsewhere, this component can be found in mobile phones and other wireless devices, where its inductance helps to reduce noise across the frequency range.

Additionally, the SDR0604-821KL is used in medical equipment, such as heart monitoring and ECG devices, whereby its low temperature coefficient enables it to function in volatile environments. What is more, its low voltage ratings make it suitable for use in Class II medical products.

Working Principle

The SDR0604-821KL is a fixed inductor that works by introducing resistance to the circuit in which it is placed. This resistance creates an inductive effect, which means that when current passes through it the voltage across the inductor will decrease. This helps to filter out noise and ensure that the circuit is working accurately.

The inductance of the inductor is determined by the amount of wire used in its construction. The more wire used, the higher the inductance. However, there is a limit to the amount of inductance that can be achieved, as too much inductance can reduce the performance of the component and cause any associated circuit to malfunction.

Conclusion

The SDR0604-821KL is a fixed inductor that is suitable for applications in both low and high frequency applications. It is often used to filter out noise in DC-DC converters, medical equipment and mobile phones, as well as other wireless devices, where its inductance helps to reduce interference. Furthermore, its low temperature coefficient makes it ideal for use in hazardous or volatile environments. The way that it works is by introducing resistance to the circuit in which it is placed, thus creating an inductive effect and reducing the voltage across the component.

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