P3519-472J

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Inductors are electrical components that use magnetic fields to store energy. This energy is eventually converted to electrical current. Fixed Inductors are components with inductance that cannot be adjusted. The P3519-472J by Pulse Electronics is a 4.7uH fixed inductor with a winding of ferrite cores. This application note focuses on the applications and working principles of the P3519-472J.

Application Field
The P3519-472J is capable of operating over a wide range of temperatures than many other available fixed inductors, making it suitable for high temperature and low voltage applications such as telecom infrastructure and mobile phones. Additionally, because of its small size, it is suitable for applications with limited space such as automotive and industrial products. The P3519-472J has low DCR and excellent heat dissipation characteristics which make it an ideal choice for power supply circuits and filtering circuits.

Working Principle
The P3519-472J is made of crystals of ferrite cores. Its construction is such that a coil of copper wire is wound around the cores, creating a magnetic field and therefore inductance. By applying a voltage across the inductor, a current passes through which generates a magnetic field that acts against the applied voltage. This causes a drop in the voltage and therefore electrical energy is dissipated; this is known as inductive reactance. The amount of inductance determines the extent of the voltage drop, meaning the shape of the ferrite cores has an important influence on the inductance of the P3519-472J.

In summary, the P3519-472J is a 4.7uH fixed inductor with a winding of ferrite cores. It is suitable for high temperature and low voltage applications due to its wide operating temperature range and small size. Its low DCR and excellent heat dissipation characteristics make it ideal for power supply circuits and filtering circuits. The amount of inductance is determined by the shape of the ferrite cores and the voltage across the inductor induces a current that generates a magnetic field that acts against the applied voltage, resulting in a drop in the voltage.

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