28L0138-20R

Ferrite Beads & Chips are typically manufactured as small rectangles or circles, and can be used in a variety of applications in the electronics industry. One such application is the 28L0138-20R, which is a High Power Ferrite Bead that is designed to filter out high frequency noise from DC power sources. This article will discuss the application field and working principle of the 28L0138-20R.

Application Field of the 28L0138-20R

The 28L0138-20R is designed to function as a high power, low frequency noise filter. It is commonly used to filter out noise from power sources such as 12V and 24V DC systems, as well as audio systems. It is particularly useful in applications where the power supply requires clean DC power. The 28L0138-20R is also suitable for filtering high frequency noise from LED drivers, lighting systems, switching power supplies, motor drives, and other similar devices.

Working Principle of the 28L0138-20R

The 28L0138-20R operates on the principle of electromagnetic induction. The bead is constructed from two ferrite cores that have a wiring coil running between them. When DC power is applied to the bead, the coil generates an electromagnetic field that can filter out high frequency noise. The ferrite cores also act as a shield, which helps to contain the electromagnetic field and prevent it from interfering with other electric components.

The 28L0138-20R also functions as a high pass filter, which means that it allows signals above its cutoff frequency to pass through, while blocking noise below its cutoff frequency. This ensures that only the desired signal reaches the end user and reduces interference.

Conclusion

The 28L0138-20R is a High Power Ferrite Bead that is designed to filter out high frequency noise from a variety of power sources. It works on the principle of electromagnetic induction and acts as a high pass filter. The bead is particularly useful for applications that require clean DC power, such as motor drives, LED drivers, and switching power supplies. It is an effective and cost-efficient noise filtering solution for a variety of electronics systems.