LQM18NNR15K00D

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Fixed inductors, such as the LQM18NNR15K00D, are electrical components used to store energy in the form of a magnetic field containing inductance. They are distinct from a coil in that they maintain a fixed inductance over a wide range of currents and frequencies. Fixed inductors can be found in a variety of applications, such as filters, oscillators, transformers, and impedance matching networks.

The LQM18NNR15K00D is an SMD type multilayer thin film chip inductor produced by Murata. It is a low-profile, 0402 form factor inductor that provides a high inductance with a high current capacity of 1.5 A at a rated voltage of 16 V. The inductance range is 3.6 to 15 µH and the operating temperature range is -55°C to +125°C. The maximum DC resistance is 0.062 Ohms and the maximum AC resistance is 0.084 Ohms.

The size of the LQM18NNR15K00D makes it suitable for microcontroller-based systems that have space constraints. It can also be used in a wide range of applications, such as power lines, audio equipment, and automotive systems. The device also has very low eddy current loss, excellent high frequency performance, and low input capacitance.

The working principle of the LQM18NNR15K00D is based on the principle of electromagnetic induction. When an electric current enters the device, it creates a magnetic field that induces a voltage across the device terminals. This voltage creates an opposing electric current, which in turn creates a second magnetic field. The interaction between these two fields, known as inductance, alters the current and voltage in the device. The inductor acts as a resistor, absorbing energy from the current and releasing it again, preventing it from passing through the circuit too quickly. This is how the device maintains a fixed inductance even with the varying current and frequency.

The LQM18NNR15K00D is a cost-effective solution for applications that require a small form factor and a wide range of inductance values. It is best suited for microcontroller-based systems that need to maintain a consistent inductance over a wide range of current and frequency. It is also well-suited for applications in power lines, audio equipment, and automotive systems due to its low eddy current loss, excellent high frequency performance, and low input capacitance.

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