SPD73R-154M Inductors, Coils, Chokes

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Fixed inductors are components used widely in applications including telecoms, automotive, power supplies, and many more. The SPD73R-154M is a type of fixed inductor, and its application field and working principle are described in this article.

In general, the SPD73R-154M is used in applications which require high-voltage and high-current rated inductors. It is usually employed in EMI filter circuits, DC/DC converters, and these circuits are usually under intense electrical loads. As a result, the inductor in question must have supreme isolation properties.

The SPD73R-154M has an isolation voltage of 250V. This means that any voltage excursions over this value will lead to a breakdown in the insulation between the inductor and anything it is in contact with. The rated voltage of the inductor should never exceed the isolation voltage lest the insulation fails. The device also has an inductance value of 1.54μH and a DC resistance of 0.15Ω. The low DC resistance means that it will be able to withstand higher currents.

In terms of construction, the SPD73R-154M is a shielded, high-current inductor. It consists of a soft magnetic alloy core which is wound with a flat type or bobbin type wire, depending on the application requirements. It also consists of a ferrite core; this improves the inductance significantly and reduces losses due to the core\'s hysteresis effect. Additionally, the inductor is enclosed in a shielding shell to ensure that its magnetic field does not interfere with any other equipment that may be nearby.

The SPD73R-154M operates on the principle of having a controlled magnetic field. The alternating current through the windings causes the core to become magnetized, thereby producing a magnetic field. This magnetic field then induces a voltage in the coil, which is opposite in polarity to the voltage of the current through the coil. This current-induced voltage opposes the source voltage and reduces the current until a point of equilibrium is reached.

The operating frequency of the inductor determines the working principle. At high frequencies, the rate at which the induced voltage rises is too fast for the current to flow, leading to further dropping of the current. However, at low frequencies, the induced voltage is not able to fully oppose the source voltage and a certain amount of leakage current is present.

In conclusion, the SPD73R-154M is a type of single-phase, high-voltage and high-current rated inductor. It is usually employed in applications which require supreme isolation performance, such as EMI filter circuits and DC/DC converters. Additionally, its construction consists of a soft magnetic alloy core which is wound with a bobbin type wire, and it is enclosed in a shielding shell to improve its insulation properties. Finally, it operates on the principle of having a controlled magnetic field which induces a voltage across the coil, opposing the source voltage, until an equilibrium is reached.

The specific data is subject to PDF, and the above content is for reference