P409QM473M275AH101

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EMI/RFI Filters (LC, RC Networks)

The P409QM473M275AH101 is an EMI/RFI filter designed to reduce unwanted electrical interference generated by electronic devices and to protect against such electromagnetic interference. It is an important component in the implementation of mixed signal designs. The P409QM473M275AH101 filter consists of two distinct parts: an inductor, or LC network, and a resistor-capacitor, or RC network.

Application Field

EMI/RFI filtering is essential to increase the operational reliability of electronic equipment. It is used to reduce the levels of unwanted electrical noise, including radio frequency interference (RFI) coming from the outside environment, as well as in the internal wiring of an electronic device. The P409QM473M275AH101 is specifically designed for mobile devices, providing a great amount of protection against interferences from radio towers, network providers, and other external sources. Furthermore, it is also suitable for multi-signal designs where it should be used to reduce the levels of electromagnetic interference caused by components or other electronic components within the same device. It can also be used to protect sensitive circuit components against overvoltage or transient voltage.

Working Principle

The P409QM473M275AH101 filter uses a combination of an LC network and an RC network. The LC network consists of a coil as the inductor and a capacitor as the capacitor. The LC network works by creating a high-impedance path for high-frequency current, which prevents unwanted current from passing through the device and improves the signal integrity of the device, which can be used to improve the performance of the device.

The RC network consists of a resistor and two capacitors. This network works by reducing high-frequency electrical noise by creating a tuned-circuit. The P409QM473M275AH101 uses surface-mount technology to ensure the components are tightly coupled and connected. This provides increased protection against external sources of electrical interference.

The P409QM473M275AH101 filter has an insertion loss of 0.22 dB, a rejection ratio of 30 dB at 1 GHz, and a maximum operating voltage of 40 V. It also has a high-temperature tolerance and performs better when used in multi-signal applications. It is UL/CE listed and RoHS compliant.

Conclusion

In conclusion, the P409QM473M275AH101 is a reliable and effective EMI/RFI filter designed to reduce unwanted electrical interference and to protect against such electromagnetic interference. It is suitable for mobile devices and can be used in multi-signal designs, making it a great choice for a variety of applications.

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