FN9675-3-06 Filters

Series:	FN 9675
Part Status:	Not For New Designs
Filter Type:	Single Phase
Configuration:	Single Stage
Voltage - Rated DC:	--
Voltage - Rated AC:	250V
Current:	3A
Frequency - Operating:	DC ~ 400Hz
Applications:	General Purpose
Approvals:	CSA, UR
Operating Temperature:	-25°C ~ 100°C
Mounting Type:	Chassis Mount
Termination Style:	Quick Connect
Inductance:	18mH

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FN9675-3-06 Power Line Filter Modules Application Field and Working Principle

Power Line Filter (PLF) modules, also known as EMI filters, have become an essential part of the power supply system used in most modern electronics. Every system must have a way of filtering out the interference generated by the equipment itself and from other sources. This is achieved by the PLF module, which acts as a lowpass filter to smooth out the electrical waves and filter out high-frequency interference.The FN9675-3-06 PLF module is a 3-line module made up of three capacitors, a common mode choke, and two inductors. The capacitors provide the isolation between the two power lines, while the common mode choke and inductors provide the filtering action. The filter is designed to simultaneously reduce the EMI noise generated by the connected system while still allowing the power to flow through the system with minimal interference.The FN9675-3-06 PLF module is designed for use in power supplies with up to 250W of power. It has a recommended operating voltage of 10V to 20V DC and a common mode impedance of 500 Ω @ 20MHz. The module has a maximum surge voltage of 800V and an operating temperature range of -40°C to +85°C.The FN9675-3-06 PLF module is designed to reduce the high-frequency noise of the system, as well as the generation of harmonics and resonances. It provides insulation between the power lines and removes the common-mode noise. This helps eliminate the noise generated by the power line, ensuring that the system operates without any interference. The filter also allows the voltage to remain stable and clean, ensuring that the system is running on optimal levels.The working principle of the FN9675-3-06 PLF module is based on the principles of inductance, capacitance, and impedance. The modulation of the filter is done using these principles. The capacitors reduce the EMI by attenuating the signal, while the common-mode choke helps restrict the current flow into the common-mode path, thus reducing the radiated and conducted emissions from the power line. Finally, the inductors reduce the radiated emissions by absorbing them.In conclusion, the FN9675-3-06 PLF module is a powerful line filter that is designed to reduce the EMI noise generated by the system, while still allowing the power to flow unrestricted. Its working principle is based on the principles of inductance, capacitance, and impedance and it provides excellent filtering capabilities. The filter is suitable for use in power supplies up to 250W of power and has an operating temperature range of -40°C to +85°C.

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