BLM21BD182SN1D Filters

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Ferrite beads and chips are electronic components that contain ferrite cores which work by forming a closed magnetic field, allowing for suppression of undesired electromagnetic interference and preventing signals from interfering with other electrical components. The BLM21BD182SN1D ferrite bead chip specifically is widely used in aerospace and communication markets to suppress and protect signals. This BLM21BD182SN1D chip is used mainly in high frequency applications and requires no external components or solder for mounting.

Application field

The BLM21BD182SN1D ferrite bead chip is designed to operate in high frequency applications such as mobile phone signal transmission and other high frequency digital systems. This chip is manufactured using a ferrite-rated film process, which is responsible for absorbing high frequency energy in order to reduce its impact on the radio frequency and signal transmissions. Additionally, the ferrite material in the chip resonates at a certain frequency, further improving signal clarity and amplifying it.

The BLM21BD182SN1D’s low thermal resistance ensures consistent performance in temperatures ranging from -40C to +125C and its low profile cermet construction of 1.6 x 1.0mm is perfect for miniaturisation of circuits while protecting against noise interference. As such, the is suitable for many industrial, military, telecom, automotive and consumer applications such as medical instruments, battery-powered systems, railway switchgear and more.

Working Principle

The ferrites in the chip are created with a special ceramic material which consists of iron oxide (two oxides of iron - Fe2O3 and Fe3O4) and some other metals. When an electric current is passed through a ferrite material, it will generate a weak magnetic field which is capable of bypassing some of the signal’s energy. As a result, the ferrite chip absorbs and demagnifies noise-causing signals, protecting sensitive electrical components.

The BLM21BD182SN1D ferrite bead chip is designed to work optimally with signals within the frequency range of 800 MHz to 5.8 GHz. The chip is also designed to work with high levels of peak power and average power, greatly reducing noise interference on signals. Additionally, the chip works with low levels of parasitic inductance and can withstand high current flows.

Conclusion

The BLM21BD182SN1D ferrite bead chip is perfect for any application needing to protect signals from interference and noise. It is highly stable, durable and comes in a low profile design, ideal for miniaturisation of circuits. Thanks to its wide range of operating frequencies and its low parasitic inductance, this chip is suitable for a variety of applications.

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