DSS6NC52A471Q91A

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EMI/RFI Filters (LC, RC Networks)

The EMI/RFI Filter DSS6NC52A471Q91A is an integrated component commonly used in circuit design for the purpose of suppressing electromagnetic interference (EMI) and radio frequency interference (RFI). This type of filter combines a degree of self-healing with both low pass LC and RC networks, resulting in a highly reliable and robust solution.

Application Field

The DSS6NC52A471Q91A can be used in many different applications, such as DC line filter for both single-phase and three-phase systems. It can also be used for motor control boards, industrial control boards, programmable logic controllers, automotive, instrumentation, or anywhere where EMI/RFI filtering is required. The wide frequency range of this filter also makes it suitable for high-speed signal lines that operate up to 1GHz.

Working Principle

The DSS6NC52A471Q91A combines an RC network with an LC network into a single integrated component. The RC network consists of a limited length of PCB trace with a series of capacitors and resistors connected in parallel. The LC network consists of an inductor wound on a ferrite core, where the inductance is tuned to the desired frequency. Both of these networks are designed to filter out high frequencies away from the signal path. The filter is also designed with high surge protection, which makes it suitable for withstanding surges up to four times its rated current.

The filter’s robust design also improves its ability to self-heal if damaged. This is enabled by the spreading resistor design, which provides a sacrificial resistor in the event of open circuit or short circuit faults. The filter can recover quickly and return to its original performance with a few minutes or longer, depending on the existing environmental conditions.

The DSS6NC52A471Q91A is designed for high-power applications, and features temperature rating between -40°C and +125°C. The filter also meets strict FCC, VDE, and CISPR requirements for interference and electromagnetic compliance.

Conclusion

The EMI/RFI Filter DSS6NC52A471Q91A is an integrated component that combines a low pass LC and RC networks into a single device. This filter can be used in many different applications, such as DC line filters, motor control boards, programmable logic controllers, and car instrumentation. It features a wide frequency range up to 1GHz and has a high surge protection rating. It also has high impedance levels and a self-healing design that enables it to recover quickly after any faults on the circuit. The filter also meets all FCC, VDE, and CISPR requirements for interference and electromagnetic compliance.

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