FN405-0.5-02

Overview

The FN405-0.5-02 is a single-phase EMC/EMI line filter manufactured by Schaffner EMC Inc., designed for through-hole PCB mounting. It operates within a frequency range of DC to 400Hz and supports an AC voltage rating of 250V with a current capacity of 500 mA. The unit features a single-stage configuration with an inductance of 24mH and a leakage current of 210 mA. Certified by CSA, ENEC, and UR, it functions reliably between -25°C and 100°C.

Feature Summary

• Single-phase electromagnetic interference suppression for power lines
• Through-hole termination style for direct PCB integration
• Certified compliance with international safety standards

Applications

• General purpose electronic equipment requiring EMI filtering
• PCB-mounted power supply input stages
• Devices operating within 250VAC and 500mA limits

Procurement Notes

Verify the specific ordering suffix matches the required lead time and packaging quantity. Confirm that the component meets RoHS3 specifications and REACH requirements for your target market. Ensure the thermal rating aligns with the operational environment temperature range of -25°C to 100°C before finalizing procurement.

Selection Notes

Select this model when a single-stage, low-current (500 mA) solution is required for DC to 400Hz applications. The through-hole design suits manual or wave soldering processes. Verify that the 24mH inductance provides sufficient attenuation for the specific noise profile compared to higher-capacity variants in the FN405 series.

Part Context

This component belongs to the FN 405 series of PCB filters, which are engineered for easy and fast mounting on printed circuit boards. The series offers various current ratings and configurations to address different EMC requirements while maintaining a compact form factor suitable for space-constrained electronic assemblies.

Replacement Considerations

Publicly confirmed substitute part numbers include 5500.2005 from SCHURTER Inc. and B84110A0000A005 from TDK. These alternatives are classified as similar types but require verification of pinout compatibility and electrical performance against the original specifications.