SPD73-334M

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Fixed Inductors

Fixed inductors are widely used to store electrical energy or to provide electrical paths for conducting signals. Inductors are typically used in applications that involve alternating current (AC), because they have a slightly lower impedance when exposed to AC than to direct current (DC). An example of a fixed inductor is the SPD73-334M.

The SPD73-334M is a fixed molded inductor with a 4.7mH value and a DC resistance of 0.380Ω. It has a power rating of 3.5W and is encased in a white plastic housing with dimensions of 33.0mm in length and 15.2mm in width and 7.6mm in height. It can operate up to 125°C and. The SPD73-334M is magnetically shielded and has a low-profile design with a height of only 7.6mm, which makes it ideal for automotive, industrial, and consumer applications.

The most common application fields for a fixed inductor such as the SPD73-334M include power supplies, filtering, and audio. In a power supply application, these fixed inductors help reduce the size and weight of the power supply system by providing efficient power conversion, as well as boosting the output power. They are also useful in filtering applications, where they act as high frequency filters to reduce noise and interference from other sources and to ensure the stability of the electrical signal. Finally, in audio applications they function as low-pass filters, which vary the capacitance of the inductors to reduce high frequencies and allow only low frequencies to pass through.

The basic working principle of a fixed inductor like the SPD73-334M is based on the electromagnetic principle of induction. For example, as a current passes through the inductor’s coil, it generates a magnetic field. This magnetic field interacts with the inductor’s core, inducing a back EMF or opposing voltage. This opposing voltage acts as a delay, slowing the rate of change of the current and producing the inductor’s slower current responses than resistors.

Fixed inductors have become popular among electronic designers due to their ease of use, cost-effectiveness, and high performance. The SPD73-334M combines all these benefits into a single package, making it a great choice for many applications. It is reliable enough to handle high voltage and current, flexible enough to provide excellent filtering properties, and has a high power rating.

In conclusion, the SPD73-334M is a high-quality fixed inductor that can be used for a variety of applications. Its low profile and high power rating makes it ideal for situations where space and efficiency are important. It offers reliable and efficient performance while providing excellent noise and interference filtering properties.

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