PEMI1QFN/LM,315 Filters

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Electro-Magnetic Interference (EMI) and Radio Frequency Interference (RFI) Filters are components designed to reduce the electromagnetic energy within a given electronic device. They work by connecting to the input and output of a device, trapping any high frequency EM or RFI signals and preventing them from leaking out. By preventing the interference from escaping, these components also help to protect the device from outside interference. The PEMI1QFN/LM315 is one example of an EMI/RFI Filter.

The PEMI1QFN/LM315 is a family of surface mount filters for use in personal computer designs. It was designed to reduce EMI/RFI emissions from internal circuitry while still meeting all required safety and EMC requirements. The filter is a two-piece package that uses lead-free solderable terminations and a SMC-QFN package for better signal integrity. The filter also utilizes a combination of inductors, capacitors, and resistors to create a filtering network which helps to reduce the interference generated by the internal circuitry.

The PEMI1QFN/LM315 is a great solution for a variety of common types of EMI or RFI applications. It is designed to provide filtering for parallel buses, Ethernet applications, and universal serial bus (USB) applications. The filter is suitable for use in applications up to 3.3V and can reduce total EMI/RFI emissions by up to 20dB at 400MHz. The filter is also compliant with different EMC directives, such as the CE Mark and FCC regulations.

The working principle of the PEMI1QFN/LM315 EMI/RFI filter is based on the use of inductors, capacitors, and resistors to create a filter network. The inductors are used to create a high impedance path for the RF energy, while the capacitors block the energy. The resistor is used to create a low impedance path for low frequency signals. This combination of components creates a filter network which helps to reduce the total amount of EMI/RFI interference in the device.

The PEMI1QFN/LM315 surface mount filters are a great solution for the reduction of EMI/RFI in a variety of applications. They can be used to reduce EMI/RFI for parallel buses, Ethernet applications, and USB applications. The filter is compliant with different EMC directives, and can reduce total emissions by up to 20 dB at 400 MHz. The combination of inductors, capacitors, and resistors creates a filter network which helps to reduce the amount of interference generated by the internal circuitry.

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