FN343-1-05

Overview

The FN343-1-05 is a single-phase EMC/EMI line filter module manufactured by Schaffner EMC Inc. It features a two-stage design rated for 1 A current and operates within a voltage range of 250 V DC to 400 Hz. The component utilizes quick connect terminals for input and output connections, providing efficient noise suppression for sensitive electronic circuits in compact applications.

Feature Summary

• Two-stage filtering architecture for enhanced electromagnetic interference suppression
• Single-phase configuration optimized for low-current power lines
• Quick connect terminal interface for simplified circuit integration

Applications

• Power supply units requiring EMI reduction
• Battery charger systems
• Portable electronic devices
• Energy-efficient system components

Procurement Notes

Verify the specific terminal type compatibility with your PCB or wiring harness before ordering. Confirm that the operating frequency range up to 400 Hz aligns with your system requirements. Ensure the 1 A current rating meets the load specifications of your application to prevent performance degradation or safety hazards during operation.

Selection Notes

Select this model when a compact, single-phase solution is required for low-current applications. The two-stage design offers superior attenuation compared to single-stage alternatives. Ensure the quick connect terminals match your assembly process capabilities. Consider thermal management if the device operates near its maximum current rating in enclosed spaces.

Part Context

This component belongs to the FN343 series of power line filter modules from Schaffner EMC Inc. The series is designed for general-purpose EMI/RFI suppression in single-phase AC/DC environments. The FN343-1-05 specifically targets applications needing robust noise filtering with minimal footprint and straightforward installation via quick connect interfaces.

Replacement Considerations

No public confirmed substitute part numbers are available for this specific component.