PEMI8QFN/LG,132

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EMI/RFI Filters (LC, RC Networks) are used to protect sensitive electronic equipment and circuits from Electro Magnetic Interference (EMI) and Radio Frequency Interference (RFI). The PEMI8QFN/LG,132 filter is a type of EMI/RFI filter designed for high frequency (> 30MHz) applications.

Application Field

The PEMI8QFN/LG,132 filter is mainly used in digital circuit boards for high speed data communication applications. This includes applications such as WiFi, Wireless Telecom, Digital Video Broadcast (DVB) and Wireless Local Area Networks (WLAN). It is also used in devices such as tablet PCs, mobile phones, and computers.

Working Principle

The PEMI8QFN/LG,132 filter is a Radio Frequency Interference (RFI) filter that works by blocking high frequency electromagnetic radiation and preventing it from entering a circuit. It has an on-board Low Pass Filter (LPF) and a Pi Filter. The LPF is designed to block frequencies higher than 30MHz, while the Pi Filter blocks frequencies between 1MHz and 30MHz.

Additionally, the PEMI8QFN/LG,132 filter has shielding to further reduce interference from external sources and further dampen any noise or distortion from the device itself. This shielding also ensures that any signals being transmitted by the device remain within the circuit board and within the device itself, rather than being leaked out.

The PEMI8QFN/LG,132 filter has a high power-handling capacity, which allows it to operate in harsher environmental conditions. Additionally, the filter is designed to work in high temperature applications (up to 85°C) without any notable performance degradation.

In conclusion, the PEMI8QFN/LG,132 filter is an RFI filter designed for high frequency (> 30MHz) applications such as WiFi, Wireless Telecom, Digital Video Broadcast (DVB) and Wireless Local Area Networks (WLAN). It is characterized by a low pass filter, a pi filter, and robust shielding, all of which work together to prevent EMI and RFI from entering a circuit board and affecting the performance of the device.

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