742792043

Series:	WE-CBF
Packaging:	Tape & Reel (TR)
Part Status:	Active
Filter Type:	Signal Line
Number of Lines:	1
Impedance @ Frequency:	600 Ohms @ 100MHz
Current Rating (Max):	200mA
DC Resistance (DCR) (Max):	650 mOhm
Ratings:	--
Operating Temperature:	-55°C ~ 125°C
Package / Case:	0805 (2012 Metric)
Mounting Type:	Surface Mount
Height (Max):	0.043" (1.10mm)
Size / Dimension:	0.079" L x 0.047" W (2.00mm x 1.20mm)

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Ferrite Beads and Chips – 742792043 – Application Field and Working Principle

Ferrite beads and chips are devices used mainly to protect electronic circuits from electromagnetic interference (EMI). Ferrite beads and chips are also used in high-frequency electronics, such as radio frequency (RF) and microwave processes, as well as other high-power DC applications.

Overview

Ferrite beads and chips are small components that can be added to an electronic circuit to provide it with protection against EMI. These components are typically made of a combination of ceramic materials, such as barium titanate, zinc oxide, and iron oxide, that are co-fired at very high temperatures. They are available in a variety of sizes and shapes, with the most popular ones being round and/or cubical in shape. Depending on the application, they can be used as isolators, noise filters, decoupling caps, or as chip attenuators.

Application Fields

Ferrite beads and chips have a wide range of applications, especially in the field of radio frequency electronics. These components are typically used to reduce and filter noise from high-frequency signals. A ferrite bead can be placed around a signal cable to reduce the amount of noise that travels through it. This is a common application in RF products, such as cellular phones, Wi-Fi routers, and satellite dishes.In addition, ferrite beads and chips are also used in power DC application to protect sensitive components from voltages that exceed their rated values. Ferrite beads and chips provide a simple and inexpensive means for suppressing EMI in various consumer and industrial devices. They are also used in automotive applications, such as in car stereos and keyless entry systems.

Working Principle

Ferrite beads and chips work by creating a magnetic field around the signal wire, which acts as a magnetic barrier to reduce the amount of EMI. The resistance of the bead will vary depending on the frequency range of the signal. When high-frequency signals travel through the bead, they will be attenuated. This is because the bead has the unique property of exhibiting a higher impedance to high-frequency signals, while allowing low-frequency signals to pass through.In addition, the bead\'s complex barrier structure works to reduce the reflection of the signal, which can cause interference with other devices. This is a particularly useful feature in high-frequency applications, such as RF signals, where reflections can cause interference with other electronic components.

Conclusion

Ferrite beads and chips are important components in a wide range of electronic devices, especially in high-frequency applications. They are used to reduce the amount of noise and interference caused by EMI. Additionally, they also provide a simple and inexpensive means for protection from voltage overages. Ferrite beads and chips have a wide range of applications in fields from automotive to consumer electronics.

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