74458308 Inductors, Coils, Chokes

Fixed Inductors

An inductor, also known as a coil,choke, or reactor, is a two-terminal electronic component that stores energy in a magnetic field when electric current is passed through it. A fixed inductor is a device with two terminals that is designed to have a fixed inductance value. The inductor can be a wire loop or a drilled hole in a printed-circuit board or can be formed as a chip on a tiny ceramic substrate. The 74458308 is a type of fixed inductor used in a variety of applications.

Applications

Fixed inductors are widely used in various applications such as switching power supplies, instrumentation, signal conditioning, pulse shaping, power factor correction, transient suppression, and oscillators.The 74458308 is commonly used in pulse shaping applications such as CRT displays and 4K displays. It has the ability to provide level-sensitive control over the transition of electrical signals. It has a low transition time and constant rise and fall times which make it well suited for these types of applications.The 74458308 is also often used in circuit protection applications, such as overvoltage protection, load shifting, and current limiting. Its ability to limit the amount of current that can flow through a circuit make it ideal for these types of applications.

Working Principle

When electricity flows through a coil of wire, the magnetic field generated by the coil is proportional to the amount of current flowing through it. The amount of inductance of a fixed inductor is expressed in units called henry (H). The basic working principle of a fixed inductor is that it stores energy in a magnetic field when electric current is passed through it. When the electric current passing through the fixed inductor is removed, the stored energy is released in the form of a reverse current, which is in opposite direction to the original electric current. The reversal of current is used to brake systems such as electric motors, where the released energy helps to slow down the motor.

The 74458308 fixed inductor has two numbered leads, with the inductor lead connected to either the lead of the inductor or to the opposite lead at the other end. The inductance of the 74458308 is typically marked on the package. The inductance of the 74458308 can be calculated using the formula: L = N²/R, where N is the number of coil turns and R is the resistance of the coil. The 74458308 can be used in both AC and DC circuits.

Conclusion

The 74458308 is a type of fixed inductor commonly used in applications requiring level-sensitive control over signal transitions, circuit protection, and pulse shaping. It has two numbered leads and can be used in both AC and DC circuits. Its inductance is labeled on the package and can be calculated using the formula L = N²/R, where N is the number of coil turns and R is the resistance of the coil.