FN2090NN-8-06

Overview

The Schaffner FN2090NN-8-06 is a single-phase, two-stage EMI filter designed for chassis mounting. It supports rated currents up to 8 A with a voltage rating of 250 V AC/DC and operates within a frequency range of 0 Hz to 400 Hz. The component utilizes faston terminals for connection and features an inductance of 8 mH. Its physical dimensions are 113.5 mm in length, 57.5 mm in depth, and 45.4 mm in height. The unit functions reliably within an operating temperature range of -25°C to +100°C.

Feature Summary

• Two-stage filtering architecture providing high differential and common-mode attenuation
• Optimized design for noisy AC and DC applications
• Chassis mount configuration for rapid installation

Applications

• Medical equipment requiring enhanced isolation
• Industrial power supplies
• Electronic test and measurement instruments

Procurement Notes

Verify the specific suffix 'NN' against official datasheets to confirm the absence of Y-capacitors, which distinguishes this variant from standard models. Ensure terminal compatibility with faston connectors matches the system requirements. Confirm that the 8 A current rating aligns with the peak load expectations of the target application circuit.

Selection Notes

Select this model when low leakage current is critical, as the NN designation typically indicates a medical-grade version without Y-capacitors. Compare the 8 A rating against the maximum continuous load. Consider the chassis mounting style if panel integration is preferred over PCB mounting. Verify thermal management capabilities given the 100°C maximum operating temperature limit.

Part Context

This component belongs to the FN2090 series, which offers multi-stage AC/DC EMI filters with excellent attenuation performance. The series provides various terminal options and optional surge protection. The NN suffix specifically denotes a variant optimized for applications requiring reduced capacitive coupling to ground.

Replacement Considerations

Consult official substitution lists for equivalent ratings. Generic replacements may lack the specific NN insulation characteristics or two-stage attenuation profile.