LI0201B241R-12

Series:	LI
Packaging:	Tape & Reel (TR)
Part Status:	Active
Filter Type:	Power, Signal Line
Number of Lines:	1
Impedance @ Frequency:	240 Ohms @ 100MHz
Current Rating (Max):	200mA
DC Resistance (DCR) (Max):	1 Ohm
Ratings:	--
Operating Temperature:	-40°C ~ 125°C
Package / Case:	0201 (0603 Metric)
Mounting Type:	Surface Mount
Height (Max):	0.013" (0.33mm)
Size / Dimension:	0.024" L x 0.012" W (0.60mm x 0.30mm)

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Ferrite Beads and Chips: LI0201B241R-12 Application Field and Working Principle

Ferrite beads and chips are used for a range of electronic and electrical applications. They allow a decrease in the size of printed circuit boards, reduce electric noise, and provide improved protection from environment and dust. The current series of ferrite chip beads offer great varieties in terms of size and power dissipation. LI0201B241R-12, a multi-layered chip bead from TDK, is one of the popular devices used in many modern electronics.

Application Field

The LI0201B241R-12, which is a 10mm x 4mm x 5mm ferrite chip bead, is a high-powered bead designed for high frequency applications. It is widely used for its ability to reject electromagnetic noise in applications such as DC-DC converter, communication devices, and electronic measuring equipment. This particular ferrite chip bead features a remarkable work frequency range from 0.1MHz to 100MHz. This makes it suitable for DC-DC converters used for charging mobile phones and other electronic consumer products. The operating temperature range is between -20°C to +85°C, which provides a much broader application range for many industrial-level products such as network switches, semiconductor testers, medical devices and aerospace components.

Working Principle

The working principle of LI0201B241R-12 chip bead is based on the induction saturation effect. It works by repelling or absorbing electromagnetic signals with frequencies outside the desired range. This can be done through the passive element, ferrite, which is used as the core of the chip bead. The Ferrite is constructed with a hollow core, made of magnetic particles, and is surrounded by a secondary winding. When the current is passed through the winding, it creates a magnetic field in the core which induces a voltage in the winding. This induced voltage works to control or limit the current passing through the winding. The ferrite bead also has two ends called the terminals. This gives it the ability to act as an impedance device, providing resistance to electrical noise. When current passes through the terminal, it creates an electromagnetism which works to oppose the current flow in the opposite terminal. This helps to reduce the electrical noise generated by the surrounding environment.

Conclusion

The LI0201B241R-12 ferrite chip bead from TDK is a versatile device which is widely used in various high frequency applications. It has a broad working frequency range and an operating temperature range of -20°C to +85°C. Its working principle is based on magnetic induction saturation to reduce electrical noise from surrounding environment and power sources. This makes it suitable for various types of electrical and electronic equipment.

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