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Power Line Filter Modules

The 3EXP series of Power Line Filter Modules from Murata Electronics is suited for a wide range of applications. The modules are designed to provide outstanding noise suppression between the mains power line and the connected electronics circuits or devices. These filters deliver superior performance, thanks to the use of materials, techniques and processes, which have been developed over many years.

Overview of Applications

The 3EXP series of Power Line Filter Modules can be applied in various different ways. These include:

• Telecommunication systems, such as mobile telephones, computerized telephone systems, and other communication network devices.
• Power amplifiers, including those used in medical and audio/visual equipment.
• Video apparatus, such as TVs and signal processing equipment.
• Office automation systems, including computers, printers, and other peripherals.
• Access control systems.
• Industrial equipment, such as robots and power controllers.
• Automotive electronics, including navigation systems and audio/visual equipment.

Working Principle

The working principle behind the 3EXP series of Power Line Filter Modules is based on a unique filtering technology developed by Murata Electronics. This technology includes several components, which work together to reduce the effect of EMI/RFI interference on electronics circuits and devices. The components used in the filter include:

• Metal oxide varistors (MOVs), to absorb and dissipate surge energy.
• Ceramic capacitors, to provide a low-impedance path for high frequency noise currents.
• Ferrite beads or inductors, to provide inductive attenuation of high frequency noise.
• Mica capacitors, to provide additional high frequency noise attenuation.

The 3EXP Power Line Filter Modules are designed to suppress EMI/RFI interference on the mains power line and provide superior protection of connected circuits or devices. They are available in a wide range of configurations, including single, dual, and three-phase configurations. The modules are capable of handling high current levels, up to 16 Amps, and provide excellent noise suppression.

Conclusion

The 3EXP series of Power Line Filter Modules from Murata Electronics is a reliable and highly effective solution for suppressing EMI/RFI interference on the mains power line. These filters are suited for a wide range of applications, including telecommunication systems, power amplifiers, video apparatus, office automation systems, access control systems, industrial equipment, and automotive electronics. The unique filtering technology employed in the filter ensures superior suppression of high frequency noise, while the integration of MOVs, ceramic capacitors, ferrite beads, and mica capacitors all work together to provide an additional layer of protection.

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