LQP15MN1N3B02D

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Fixed inductors, also known as chokes or coils, are a type of passive two-terminal electrical component used for a wide variety of applications. Some of the most common uses for fixed inductors include filtering, electrical current limiting, and providing magnetic field shielding. While these components have been around since the invention of electricity, their use has become increasingly popular due to a myriad of new technologies. The LQP15MN1N3B02D is a type of surface mount fixed inductor used for many of these applications.

The LQP15MN1N3B02D is an Untaped, radial-leaded wire-wound inductors. It is designed for high current, low-profile space-saving applications due to its small size. It has a variety of use cases, including switching power supplies, power circuits, audio frequency and radio frequency circuits, and automotive electronics. Its dimensions are 0.25" by 0.20" by 0.14", its rated current is 2.2A, and it has rated inductance values from 4.7µH to 100µH.

The working principle of a fixed inductor is based on the interplay between electrical and magnetic fields. As electrical current flows through an inductor, a magnetic field is created around the inductor. This field reactant with the current to form an electrical resistance, thereby limiting the amount of current that can pass through. The amount of resistance and the number of turns of wire in the inductor dictate the amount of electrical current that can pass through.

The inductor works on the same principle as an electric transformer, just in reverse. Whereas a transformer increases the current based on the number of primary and secondary generator coils, an inductor reduces the current based on the same principle. When placed in parallel with a voltage source, an inductor can be used to maintain a desired portion of the original current. This is the most common use of an inductor in an electrical circuit.

Within a switching power supply, like the type used in an electrical appliance, the inductor is used to smooth out the ripple voltage generated by the switching of the power transistors. This current smoothing action enables consistent power to the load without sudden changes in voltage or current. The inductor also acts as an overcurrent protection device, ensuring that the power supply does not draw too much current, which can cause damage.

In audio frequency and radio frequency circuits, inductor coils are used to filter out unwanted frequencies. By tuning the inductor with the right amount of inductance, certain frequencies can be blocked while low-frequency signals are allowed to pass. This is done by adjusting the impedance of the inductor, combined with capacitors, to achieve the desired amount of filtering.

The LQP15MN1N3B02D surface mount fixed inductor is a popular inductor for many of these applications due to its size and current rating. Its small form factor, combined with its reliable operation and precision design, makes it ideal for modern electronic circuits that require compact components that can handle high amounts of current.

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