1638R-28J

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Fixed Inductors

Fixed inductors are electronic components that are composed of coils of wire and a core, and used to store energy in the form of an electromagnetic field. They help to generate and alter current in electrical circuits, and provide stable frequencies, as well as manage impedance. The 1638R-28J fixed inductor is an SMD power inductor with a radial leaded construction. It has high inductance, low DCR, and high current saturation.

Application Field

These inductors can be used in various applications. Their effective frequency range is from 5kHz to 50MHz and they have excellent temperature stability. Due to their higher inductance, they are ideal for power line filter applications, audio equipment, and automotive electronics. They can be used in power supply areas such as DC/DC converters and servers.

Working Principle

The primary purpose of a fixed inductor is to store energy in the form of an electromagnetic field when the current passes around a coiled wire. When an alternating current passes through the inductor, a charge is produced in the coil. This is known as inductance. The maximum charge - or inductance - produced by the inductor is determined by the size and number of turns in the coil, and is usually measured in henries. The core material used also affects the amount of inductance.

As the current passes through the inductor, electromagnetic forces are generated which oppose any changes in the current. The inductor acts as a resistor to changes in the current, so it can be used to stabilise or control frequencies, and can help reduce electromagnetic interference in electronic devices. The DCR (direct current resistance) of the inductor refers to the amount of resistance the inductor offers to a flow of direct current.

When large amounts of current pass through the inductor, the magnetic field produces a reactive power, and the inductor creates a voltage drop. This is known as current saturation, and it can significantly reduce efficiency. This can be minimized by using a larger inductor, increasing the ambient temperature, or by reducing ripple current. Temperature fluctuations can also affect the performance of an inductor, so temperature compensation is important.

Conclusion

The 1638R-28J fixed inductor is a powerful and reliable electronic component. It has a wide array of applications and is used to manage impedance, provide stable frequencies, and store energy. Its frequency range is from 5kHz to 50MHz and it has excellent temperature stability. Its high inductance and low DCR make it ideal for use in power supply, audio equipment, and automotive electronics. The inductor should remain in temperature controlled environments to ensure optimum performance.

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