Series:	ACML
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Filter Type:	--
Number of Lines:	1
Impedance @ Frequency:	240 Ohms @ 100MHz
Current Rating (Max):	200mA
DC Resistance (DCR) (Max):	1 Ohm
Ratings:	--
Operating Temperature:	-55°C ~ 125°C
Package / Case:	0201 (0603 Metric)
Mounting Type:	Surface Mount
Height (Max):	0.014" (0.35mm)
Size / Dimension:	0.024" L x 0.012" W (0.60mm x 0.30mm)

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Ferrite Beads and Chips

Ferrite beads and chips serve a wide variety of functions, from EMI/RFI suppression, to transformer coupling, to noise reduction in communications, to protection from voltage spikes. The ACML-0201-241-T in particular is a ceramic, bead-type ferrite device from Anaren, Inc. that has an operating frequency range of 0 to 40 GHZ and an operating impedance range of 20 to 60 ohms.

Application Field and Working Principle

The ACML-0201-241-T is designed to provide impedance matching and EMI/RFI suppression in devices with high frequencies. It is suitable for use in mobile phones, RFID systems, and other communication systems operating in the 0 to 40 GHz range. The main operating principle of the ACML-0201-241-T is to reduce electromagnetic interference (EMI) and radio frequency interference (RFI) that may be picked up by a device. EMI and RFI can be caused by external or internal sources.For example, high frequency signals emanating from an internal source, such as the switching power supply in a laptop computer, can cause interference with the laptop’s microphone. The ferrite bead is used to isolate these high frequency signals and reduce their signal strength before they can reach the microphone. Similarly, ferrite beads can be used to block external electrical signals, such as those from nearby radio and television towers, which can interfere with the operation of a device.The ACML-0201-241-T is a type of ferrite bead that is particularly effective at reducing high frequency EMI and RFI signals. It is comprised of a ceramic material that has paramagnetic properties. Paramagnetism is the tendency for a material to be attracted to magnetic fields. The ACML-0201-241-T takes advantage of this property by creating a magnetic field that opposes and absorbs high-frequency signals before they reach the device’s sensitivity components.The ACML-0201-241-T is also designed with a low reactance, allowing a wider range of frequencies to be attenuated effectively. The device’s capacitance is also very low, reducing the chances of the ferrite bead interacting with the signal paths it is connected to. Its wide temperature range makes it suitable for use in a wide variety of applications.The Ferrite Beads and Chips family of products also includes chip ferrites, which are small devices used to reduce EMI and RFI. They are similar to bead ferrites, but their form factor is much smaller. They are typically used in applications where space is a premium, such as in PCB boards in mobile phones or other handheld devices. Chip ferrites differ from bead ferrites in that they have higher inductance but lower maximum impedance.

Conclusion

In summary, the ACML-0201-241-T is a ferrite bead device especially designed to provide EMI/RFI suppression and reject high frequency signals. It is part of the broader Ferrite Beads and Chips family of products which also includes chip ferrites. The ACML-0201-241-T is particularly suitable for use in applications requiring high frequencies, such as mobile phones, RFID systems, and other communication systems operating in the 0 to 40 GHz range.

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