PQ2617BHA-4R7K

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Fixed inductors, also known as chokes, involve a coil of wire wrapped around an insulating core and are mainly used to block electric current. PQ2617BHA-4R7K is one of the common types of fixed inductor. It finds its application in filters, coupling, sensing, decoupling, timing, delaying, energy storage and voltage conversion.

Physically, PQ2617BHA-4R7K is a type of through-hole inductor. It features nickel-plated finish, molded construction, and its dimension is 26.3mm by 17.3mm with a height of 17mm. This design allows it to be easily assembled in applications with size requirement. The inductance of PQ2617BHA-4R7K ranges from 4.7µH to 470µH, while its rated current can be up to 950mA.

In terms of working principle, PQ2617BHA-4R7K is based on the principles of Faraday’s law of induction and Lenz’s Law. When the current flows through the inductor, the magnetic field generated around it induces an opposing voltage. This is determined by the equation V = - L(di/dt). This resulting voltage blocks the current, thus PQ2617BHA-4R7K can be used as a choke for suppressing high-frequency noise.

PQ2617BHA-4R7K can be used in frequency filters and matching circuits. It works together with a capacitor in a low-pass filter, where it generates a signal picket due to its high inductance. So it is possible to filter out unwanted high-frequency signals, such as RF signals. Furthermore, it can be used in AC-DC converters as well. In this application, its high inductance property can block the high-frequency ripple current, thus it can help to maintain the output voltage within the acceptable range.

PQ2617BHA-4R7K is also widely used for EMI suppression. Its high inductance property helps to absorb energy coming from the unwanted high-frequency sources. By doing this, it can effectively reduce the interference and keep the noise level low. In addition to that, PQ2617BHA-4R7K can also be used for energy storage. Its high inductance can hold the current for a certain period of time, so it can be used in applications that require temporary energy storage.

In conclusion, PQ2617BHA-4R7K is a type of fixed inductor with wide application range. Its working principle is based on Faraday’s law of induction and Lenz’s Law. It can be used for EMI suppression, frequency filters, energy storage and AC-DC converters. The compact design of PQ2617BHA-4R7K makes it suitable for applications with size requirement.

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