4501-134M

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Fixed inductors are an electrically and mechanically passive component used in various applications such as in radio, electronic circuits, and power supplies. They are also known as chokes or inductors to filter, store, or block electric current. The various types of fixed inductors are categorized according to the physical form of the inductor and its intended application. The most commonly used inductors include air-core inductors and ferrite-core inductors.

The 4501-134M fixed inductor is a ferrite (high-resistivity ceramic material) core, axial lead inductor. This type of inductor is designed with an inductance value of 0.47uH to 10H with a rated current of 0.40A. The 4501-134M is contained within a flame retardant UL 94V-2 brass-plated steel case, and is coated with a black thermoset moldable polymer. In terms of electrical characteristics, the 4501-134M fixed inductor features good electrical stability, low self-inductance, and low cross-talk.

The 4501-134M fixed inductor is mainly employed in power-line filters, voice coils, loop antennas, and other magnetic components. Its application field includes supply line filters and audio circuit filters, as well as automotive, smart home, and industrial circuits.

The working principle of a fixed inductor is reasonably straightforward. As electricity passes through it, the inductor effectively opposes a change in current, hence preventing voltage spikes and interference. Generally, when a voltage source is connected to the inductor, the current going through it increases which causes an opposing magnetic field to be created by the coil of the inductor. This magnetic field causes an opposing force to be applied to the current which prolongs the time it takes for the current to change, and this yields an effect of limiting the current draw.

The inductance of a fixed inductor is determined by the number of turns of the coil, the area of the cross-section of the coil, and the permeability (the ability of the core material to conduct magnetic lines) of the magnetic core. Normally, the higher the inductance value of the inductor, the higher the resonant frequency and the lower the impedance which gives an attenuation effect. On the other hand, if the inductance value is too low, the performance of the inductor will suffer, which can lead to voltage spikes and noise.

In conclusion, the 4501-134M fixed inductor is a ferrite-core, axial lead inductor used for power-line filters, voice coils, loop antennas, and other magnetic components. Its application field includes supply line filters and audio circuit filters, as well as automotive, smart home, and industrial circuits. The working principle of the inductor is that it opposes a change in current and induces a magnetic field which creates a force that prolongs the time it takes for the current to change, thus limiting the current draw.

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