4501R-126M

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Fixed Inductors

A fixed inductor is an electrical component designed to store energy in the form of a magnetic field when an electrical current passes through it. It is used to create an alternating magnetic field or inductance, which can be used to filter, condition or regulate power. Inductors are also commonly used in combination with resistors and capacitors in a variety of applications.

The 4501R-126M is one type of fixed inductor. It is an axial-lead fixed inductor with an inductance of 1.26 μH. It is the most suitable for applications where a low inductance is required and offers higher current handling capability at lower DCR. It has a wide working temperature range of -40℃ to +125℃ and a self-resonant frequency of 200kHz. It is well suited for applications such as power supply filtering, resonances, and impedance matching.

Working Principle

When an alternating current passes through the coils of the 4501R-126M, a magnetic field is formed around the inductor as a reaction. As the current increases, the magnetic field increases in strength and so does the inductance, until a point is reached where the current stops increasing. The amount of current that can flow through the inductor at this point is called the saturation current or the steady-state current.

The energy stored in the 4501R-126M inductor is proportional to the square of the current, so more energy can be stored if the current is higher. When the current reaches the saturation current, the inductor cannot store any more energy and the current will not increase any further. This is the working principle of the 4501R-126M fixed inductor.

Application Field

The 4501R-126M can be used in a variety of applications like power supply filtering, resonances, and impedance matching. It is mainly used to create a magnetic field for EMI and RFI reduction, signal conditioning, and current-limiting purposes.

It is suitable for use in cellular phones, portable devices, computers, medical applications, and low voltage power supplies where a higher current handling capability is required. It can also be used for inductive switching applications such as relays, solenoids, and motor speed control. The low inductance of the inductor makes it an ideal choice for these applications.

Conclusion

The 4501R-126M is a fixed inductor with a low inductance of 1.26 μH and a wide temperature range of -40℃ to +125℃. It is suitable for applications such as power supply filtering, resonances, impedance matching, and EMI/RFI reduction. Its capability to handle higher currents make it an ideal choice for use in circuit design, especially for applications where current-limiting is required.

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