TFL0816-4N7 Inductors, Coils, Chokes

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Fixed inductors refer to inductors whose inductance values remain unchanged over time. The TFL0816-4N7 is a type of fixed inductor composed of two pieces of parallel magnet wire wound around an iron slug housed in a plastic mould. The winding of the magnet wire passes through a hole near the center of the slug and is clamped at the bottom to keep it tightly in place. The iron slug acts as an air gap in the coil, allowing for a larger air gap for lower inductance values.

The TFL0816-4N7 is typically used in common mode choke circuits for circuit noise suppression. It can be used for line filtering, waveform shaping, or high-frequency signal blocking and is suitable for use in DC to 500MHz frequencies. It can also be used for pulse filtering and impedance conversion. Positive-temperature-coefficient (PTC) ceramics are often incorporated to improve temperature stability and high surge capability.

The working principle behind the TFL0816-4N7 is based on Faraday\'s law of electromagnetic induction. When an alternating current is applied to the winding of a fixed inductor, an electric field is generated between the windings. This electric field induces a voltage in the winding which causes a current to flow through the magnet wire. This current produces a magnetic field which interacts with the electric field, causing the electric field to change direction every time it encounters an iron slug. This induced current is responsible for the increased inductance of the fixed inductor and is known as inductive reactance.

The size of the TFL0816-4N7 is reduced with the addition of additional magnet wire windings. This also increases the inductance value of the inductor. The inductance value is determined by a number of factors, including the number of turns on the windings, the air gap between the windings, and the permeability of the core material. The TFL0816-4N7 is typically used in circuits where the inductance value needs to remain consistent over time and the inductance levels remain consistent over frequency ranges.

The TFL0816-4N7 is a popular type of fixed inductor due to its small size, reliable performance, and ease of use. It is used in a wide range of applications from low-frequency applications to high-frequency noise suppression. Due to its reliability and high operating temperature range, it is often used in automotive, industrial, and telecommunications applications. With its ability to maintain high levels of inductance over a wide range of frequencies, the TFL0816-4N7 is an ideal choice for a variety of power supply filtering and noise suppression applications.

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