NLFV25T-6R8M-PF Inductors, Coils, Chokes

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Fixed inductors, also known as chokes, are electrical components used to store energy in a magnetic field and then release it at a specific frequency. They are also referred to as coils or reactors. The NLFV25T-6R8M-PF is a fixed inductor developed by Littelfuse, Inc., and is used primarily in power distribution applications. This article discusses the application fields and working principle of the NLFV25T-6R8M-PF.

Application Field

The NLFV25T-6R8M-PF is a rated at 25.0µH and is intended for use in power supply and power distribution applications. It is suitable for use in applications up to 20A and is designed for use with SMD switch mode power supplies, power converters, and other power supply circuits.

The inductor can be used in applications with a supply voltage up to 24V DC and switching frequencies up to 500kHz. It is rated at 85°C ambient temperature and can be used in an operating temperature range from -40°C to +85°C.

The NLFV25T-6R8M-PF is designed with a shielded construction and features low EMI emissions. The shielded construction offers excellent interference suppression, and the low EMI emissions ensure that the inductor does not interfere with nearby electronic components.

Working Principle

The basic working principle of a fixed inductor is simple. It consists of a coil of conducting material, typically wire, wrapped around a magnetic core. When a current is applied to the coil, the magnetic field created by the current induces an opposing voltage in the coil, creating a high impedance path. This impedance limits the flow of current, making the inductor an ideal component for power distribution.

When the current is switched off, the magnetic field begins to collapse. As the field collapses, a part of the energy stored in the field is released back into the circuit. This energy is used to keep the currents flowing even after the power is switched off. The energy stored in the magnetic field is proportional to the current in the coil, so the levels of switching voltage, frequency, and temperature are all factors that determine how much energy is stored in the coil.

The NLFV25T-6R8M-PF is specifically designed to handle high frequencies and resist temperature variations. It features a low DC resistance, which is an important factor in power distribution circuits where a drop in voltage can cause losses and degrade system performance. It also features high current-handling capabilities, making it suitable for applications with up to 20A of current.

The NLFV25T-6R8M-PF is a reliable fixed inductor that offers excellent performance in power distribution applications. It has a wide operating temperature range, high current-handling capabilities, low DC resistance, and low EMI emissions. The inductor is ideal for use in power supply and power distribution circuits, providing efficient power supply and distribution.

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