FN343-6-05

Overview

The Schaffner FN343-6-05 is a single-phase EMI/EMC power line filter designed for chassis mounting. It features a dual-stage filter architecture with an integrated earth line choke, providing effective noise suppression in compact housing. The component supports rated currents up to 6 A and operates at voltage ratings of 250 VAC. It utilizes faston/solder lug termination types and functions within a frequency range of 0 Hz to 400 Hz. The unit exhibits a leakage current of 340 uA and complies with UL, CSA, and IEC/EN standards.

Feature Summary

• Dual-stage filtering design incorporating an integrated earth line choke for enhanced noise attenuation
• Compact housing structure optimized for efficient chassis mounting applications
• Compliance with major international safety and EMC standards including UL, CSA, and IEC/EN

Applications

• Single-phase equipment requiring EMI/EMC line filtering
• Chassis-mounted electronic systems operating at 250 VAC
• Industrial control units needing low leakage current performance

Procurement Notes

Verify the specific termination style required, as datasheets may list both faston and solder lug options for this series. Confirm that the 6 A current rating aligns with your system's continuous load requirements. Ensure chassis mounting provisions match the physical dimensions specified in the official Schaffner documentation before finalizing procurement.

Selection Notes

Select this model when a single-phase solution with integrated earth choke is necessary. The dual-stage design offers superior attenuation compared to single-stage alternatives. Consider the 340 uA leakage current limit if sensitive medical or precision instrumentation is involved. Verify that the 0 Hz to 400 Hz operational frequency covers your application's input spectrum.

Part Context

This component belongs to the FN343 series from TE Connectivity/Schaffner, which specializes in high-performance single-phase filters. The series ranges from 1 A to 10 A rated currents. The FN343-6-05 specifically addresses mid-range current needs while maintaining a small footprint. It is part of a broader portfolio of power line conditioners designed for industrial and commercial electronics.

Replacement Considerations

Cross-reference with other FN343 variants such as FN343-1-05 or FN343-10-05 if current ratings differ. Ensure any substitute maintains the dual-stage topology and integrated earth choke characteristics. Verify compatibility with existing chassis mounting holes and terminal configurations.