MHQ1005P19NGT000

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Fixed Inductors

A fixed inductor, also known as an inductor coil, is a passive two-terminal electrical component used to store energy in the form of a magnetic field. It is most commonly used in circuits where a relatively small current needs to be induced—for example, cell phone charging circuits or current control circuits. The MHQ1005P19NGT000 is one such fixed inductor. This article will discuss its application field and working principle.

Application Field

The MHQ1005P19NGT000 is a miniature surface-mount device that can be used in a variety of applications, such as high-speed logic circuits. It is primarily used in automotive systems, industrial systems, consumer electronics, and networking applications where low-loss and robust inductance are required. It can also be used as a RF filter choke, a line filtering choke, an EMI filter, or a common mode choke. Its compact size makes it suitable for use in tight spaces.

Working Principle

The working principle of a fixed inductor is based on Faraday’s law of electromagnetic induction. When an alternating current or voltage is applied across its two terminals, a changing magnetic field is created, which in turn induces a current in the opposite direction. The amount of current induced is proportional to the magnitude of the alternating current or voltage and is also proportional to the inductance of the inductor. The impedance of the inductor, or its opposition to changes in the current, is also proportional to its inductance. In the case of the MHQ1005P19NGT000, its inductance is 0.1 µH (10 nH) and its impedance is 200 Ω.

In addition to being used as a current, voltage, or impedance regulator, fixed inductors can also be used for signal regulation, impedance matching, signal isolation, and power supply dampening. They are also often used to constitute a tank circuit, a tuned circuit, or an inductor board.

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