FN409-3-02

Overview

The Schaffner FN409-3-02 is a single-phase EMI filter circuit designed for PCB mounting. It features a voltage rating of 75 VDC and a current rating of 3.2 A. The component utilizes solder pin termination for secure board integration. Official documentation classifies it under EMI Filter Circuits within the Filters subcategory. The manufacturer is TE Connectivity / Schaffner, and the product carries UL, CSA, and IEC/EN compliance certifications.

Feature Summary

• Single-phase EMI filtering capability for power line applications
• PCB mount design with solder pin termination
• Certified to UL, CSA, and IEC/EN standards

Applications

• General-purpose EMI filtering in electronic equipment
• Power supply input stages requiring compact filtration
• Industrial control systems needing certified noise suppression

Procurement Notes

Verify the current lifecycle status before procurement, as official sources indicate this part may be subject to discontinuation or obsolescence notifications. Confirm that the 75 VDC rating aligns with your system's electrical requirements. Ensure compatibility with the specified 3.2 A current load and solder pin footprint during the design-in phase to avoid integration issues.

Selection Notes

Select this component when a single-phase, low-voltage DC EMI filter is required for PCB assembly. The 3.2 A rating suits moderate current applications. Verify that the 75 VDC maximum voltage meets the circuit specifications. Consider the physical dimensions and weight constraints, as the unit weighs approximately 30 g. Ensure the solder pin termination method matches the target PCB layout.

Part Context

The FN409 series represents a line of power line filters manufactured by Schaffner EMC Inc., now part of TE Connectivity. These components are engineered for electromagnetic interference suppression in single-phase circuits. The FN409-3-02 specifically targets applications requiring robust noise reduction in compact form factors, adhering to international safety and performance standards.

Replacement Considerations

Check for official substitute part numbers from Schaffner or TE Connectivity if this item is discontinued. Cross-reference technical specifications such as current rating, voltage limits, and physical footprint to ensure functional equivalence. Consult the manufacturer's obsolescence notices for recommended alternatives.