28F0121-0SR

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Ferrite beads and chips are specialized components which are used to suppress electromagnetic interference (EMI) and electrical fast transients (EFT).The 28F0121-0SR is a ferrite bead chip manufactured by Murata. It is an SMD (surface mounted device) model capable of suppressing high frequency noise up to a frequency of 1GHz with a low DC resistance of 0.087 ohms.

The 28F0121-0SR is constructed with a top-shielded structure to prevent it from being subjected to external electromagnetic noises. This design offers excellent noise-suppressing characteristics while maintaining a low DC resistance of 0.087ohms. Additionally, this ferrite beads and chips are capable of overall noise reduction with a narrow band-pass filter.

The 28F0121-0SR ferrite beads and chips application field is to reduce high-frequency noise, commonly found in high-speed signal transmission, such as digital circuits, mobile phone circuits, LCD display circuits, and RF signal transmission circuits. This part is suitable for use in a wide variety of products which includes consumer electronic products such as home electronics, computer peripherals, automotive electronic products, and industrial electronics.

The 28F0121-0SR’s working principle is to absorb, isolate, attenuate, or divert incoming radio frequency (RF) radiation. This is done by electrical absorption of the various signals being generated by the components which are connected to the part, such as the device’s power supply, motherboard, or antenna. The part then reflects the signal in the opposite direction, thus attenuating it before it is allowed to radiate or interfere with any other nearby component or device. The ferrite beads and chips also acts as a capacitor, and with the help of a resistor, helps to reduce the signal generated by the system.

The 28F0121-0SR’s is a small, surface mounted component which offers excellent noise-suppressing characteristics while maintaining a low DC resistance. It is suitable for a wide variety of products such as mobile phones, computers, automotive electronical products, and industrial electronics. It works by absorbing the incoming signal for interference and attenuating it. This is done with the help of a resistor, capacitor, and a shielded top-structure.

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