PEMI2QFN/RK,115 Filters

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EMI/RFI Filters (LC, RC Networks)

PEMI2QFN/RK,115 is a line filter designed for modular equipment usage for effective EMI/RFI protection. It is designed to suppress conducted emissions while featuring bi-directional filtering, providing immunity from external EMI/RFI radiation. It features an innovative split core part design that easily enables the user to retrofit the filter into any configuration.

Application fields of PEMI2QFN/RK,115

PEMI2QFN/RK,115 is used mainly in the industries of telecommunication equipments, medical equipments, AC/DC power, industrial control, and consumer audio/video products. It does a great job in reducing or eliminating the entrance of electromagnetic interference (EMI) and radio frequency interference (RFI) into communications and control systems. Its application is suitable in the plugs, sockets, PC boards, and multi-way terminals.

Work principle of PEMI2QFN/RK,115

Unlike an unshielded device, the PEMI2QFN/RK,115 working principle is based on the principle of electromagnetic shielding. It consists of two parts – an inductive or an LC filter and a capacitive or an RC filter. The LC filter passes high-frequency signals and attenuates low-frequency signals, while the RC filter passes low-frequency signals and attenuates high-frequency signals. The two filters act together in reducing conducted emissions and providing immunity to external EMI/RFI radiation.

Signal Splitting

Furthermore, the PEMI2QFN/RK,115 can ensure an additional level of signal splitting. This is possible thanks to the innovative split core part design and the EMI/RFI filter used in the device. This design ensures evenly distributed power transfer across the interconnection and a reliable, efficiently functioning product in industrial applications.

Advantages over unshielded devices

Unshielded devices are vulnerable to external electromagnetic noise, while shielded devices, such as the PEMI2QFN/RK,115, are much more resistant to external noise. In addition, the PEMI2QFN/RK,115 also offers significantly better performance over unshielded devices, with lower levels of conducted emissions and better immunity to external EMI/RFI radiation.

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