FN2020B-20-06

Overview

The Schaffner FN2020B-20-06 is a single-phase EMI power line filter rated for 20 A and 250 V AC/DC. Designed for chassis mounting, it utilizes fast-on terminals for connection. The unit operates within a temperature range of -25°C to +100°C at 400 Hz. Key electrical parameters include a capacitance of 150 nF, inductance of 600 μH, leakage current of 740 μA, and power loss of 3.8 W. Physical dimensions are 85 mm in depth, 54 mm in length, and 30.3 mm in height.

Feature Summary

• Metal enclosure provides optimal earth connection and high-frequency performance
• Internal structure accommodates up to three circuit stages for noise attenuation
• Fast-on terminal configuration enables rapid installation

Applications

• Medical equipment power supplies
• Single-phase industrial machinery
• Chassis-mounted electronic systems requiring EMI suppression

Procurement Notes

Verify the specific suffix 'B' against official datasheets to confirm medical-grade compliance or specific internal component variations. Ensure the fast-on terminal blade dimensions match the mating connector specifications. Confirm that the 740 μA leakage current complies with safety standards for the intended application environment.

Selection Notes

Select this model for single-phase applications requiring 20 A capacity with chassis mounting constraints. The fast-on interface suits automated assembly or quick maintenance scenarios. Evaluate the 740 μA leakage current against strict safety limits; if lower leakage is required, consider alternative series such as FN2450B.

Part Context

This component belongs to the FN2020 series of single-phase EMI filters manufactured by Schaffner EMC Inc., now part of TE Connectivity. The series is characterized by metal housing designs intended for robust chassis mounting. It serves as a standard solution for conducted interference suppression in general-purpose and specialized power line applications.

Replacement Considerations

FN2020-20-06: Standard version without the 'B' suffix modification.