4221R-3

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Ferrite Beads and Chips are electronic components used to isolate signals or reduce interference in a circuit. They are composed of ceramic material with metal oxides and are commonly used to reduce interference from devices such as radios, cell phones, and computers. The 4221R-3 Ferrite Beads and Chips is a type of ferrite chip designed for use in power-supply interfaces, signal lines, and other applications where noise levels are relatively low.

The 4221R-3 is composed of a ferrite core with a copper outer shell, and is rated at 72 ohms DC resistance. It is intended for PCB mounting, and can be soldered directly to the PCB. Although not designed for use in high-power interfaces, the 4221R-3 can be used in relatively moderate power applications, such as signal lines and power-supply interfaces.

The 4221R-3 is designed to provide noise suppression for signals with very low current levels. Typically, it works by absorbing the interference signals and dissipating the energy as heat. This makes it ideal for applications that require very low-noise operation, such as signal lines for audio devices, as well as other low-current electronic components.

The 4221R-3 is designed to operate in the range of 0-150 MHz. Its characteristic impedance is 80-90 ohms, and its insertion loss is negligible. It also offers an operating temperature range of -20 to +100°C, and a storage temperature range of -40 to +125°C.

In addition to noise suppression, the 4221R-3 can also be used for signal isolation. By using the chip in place of a regular capacitor or inductor, the chip can provide signal isolation between two different sections of a circuit. The chip can also be used to provide a ground connection between two points.

In summary, the 4221R-3 Ferrite Beads and Chips is a type of ferrite chip designed for use in low current applications, such as signal lines and power-supply interfaces. It is proven to effectively reduce various forms of electromagnetic interference, while providing signal isolation and ground connection. It offers a wide range of operating temperatures and is extremely reliable in various applications. Therefore, the 4221R-3 is an ideal choice for use in a variety of applications requiring low-noise operation and signal isolation.

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