SPD42R-473M Inductors, Coils, Chokes

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Fixed inductors play an important role in the electronic industry. As an important component, they form the foundation of a variety of circuits. One of the most widely used fixed inductors is the SPD42R-473M. This article will discuss the application field and working principle of the SPD42R-473M.

The SPD42R-473M is a radial lead-type inductor. It uses a copper alloy core and is filled with black plastic insulation. The specific part number includes the core material, inductance value, and related additional specifications. It is a two-layer type, which means that it consists of two layers of copper alloy. It is a toroidal core that has a low reluctance and low loss and high permeability. This type of fixed inductor is commonly used in switching power supplies and various power management circuits.

The SPD42R-473M is especially designed for applications that require high frequency ripple current and low DC bias. It is also suitable for circuits that require high signal to noise ratio and require a good linearity. The operating frequency of the SPD42R-473M is usually between 1 MHz and 1.5 GHz. Its high inductance value and low resistance makes it suitable for circuits that require high frequency pulse signals, current mode converters, and SMPS (switch-mode power supplies).

The working principle of the SPD42R-473M is relatively simple. When an AC current is applied to the inductor, it stores up magnetic energy in the core in the form of a magnetic field. As the magnetic field passes through the coil, an inductance voltage is generated. The coil\'s inductance is a measure of the amount of opposition it offers to changes in the current passing through it. As the frequency of the current increases, the inductance voltage is also increased. This voltage opposes any changes in the current and produces a stable current waveform.

In addition to high frequency ripple current, the SPD42R-473M can also be used in circuits that require higher operating voltages. It is capable of operating with voltage ratings as high as 500V. The voltage rating of this inductor is indicated by a code written on its body. The code \'473M\' indicate that the inductor can operate with up to 500V.

The SPD42R-473M has many advantages, such as high frequency ripple current, low DC bias, and high signal to noise ratio. In addition, it is small in size and easy to install. This makes it ideal for use in small space applications. It also has a long life span and is highly resistant to shock and vibration. All in all, the SPD42R-473M is a high-performance fixed inductor with a variety of uses in the electronic circuitry.

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