PL9128NLT

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Fixed inductors are passive components that primarily provide a constant inductance at a particular frequency, making them ideal for regulating impedance in electrical circuits. This article focuses on the application field and working principle of the PL9128NLT fixed inductor.

PL9128NLT is a type of fixed-inductance component manufactured by TDK. It is an LEC16ERD-152K-N series surface-mount inductor containing a ferrite bead-core wrapped with copper wire. This device is designed for impedance control in circuits with a current flow range of up to 300 mA and a frequency range of 0-6GHz.

A key application of the PL9128NLT is impedance matching. This device is designed to maintain a constant impedance throughout the entire frequency range, enabling a stable connection between two components. This is especially useful for printed-circuit-board (PCB) devices, such as amplifiers, receivers, transmitters and more.

The PL9128NLT also serves as an ideal component for power-supply filtering. Due to its ferrite-core construction, this device can provide noise suppression and power regulation in various alternating-current (AC) power systems. Such power-filtering applications are commonly found in automotive, medical, home-appliance and consumer-electronics markets.

The working principle of the PL9128NLT is based on Faraday\'s Law of Induction. This law states that a changing magnetic field induces a voltage in a nearby circuit. The metals used in the PL9128NLT are excellent magnetic cores; thus, when an alternating current is applied to them, a changing magnetic field is generated around the wires. As a result, electrical current is induced in nearby circuits. This principle is the key to how this device regulates impedance and filters noise.

By understanding how the PL9128NLT works, engineers can take advantage of its ability to regulate impedance, filter noise, and provide a stable connection between two components. As mentioned earlier, this device is most effective in applications that require current flow ranges up to 300 mA and frequencies up to 6GHz, making it an ideal choice for PCBs in a variety of industries.

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