851-03/004

Overview

The Qualtek 851-03/004 is a single-phase EMI/EMC line filter designed for general-purpose power input noise suppression. It operates at 3A with voltage ratings of 115V and 250VAC at 50/60Hz. The component features wire leads and chassis mounting options. It suppresses common mode interference and meets UR, CSA, and VDE compliance standards.

Feature Summary

• Single-stage design for economical noise suppression
• Suppresses line-to-ground common mode interference
• Compliant with UR, CSA, and VDE safety standards

Applications

• General-purpose power input noise suppression
• Single-phase equipment requiring EMI filtering
• Chassis-mounted electronic assemblies

Procurement Notes

Verify the obsolete lifecycle status before procurement planning. Confirm that the wire lead configuration and chassis mounting dimensions match the mechanical constraints of the target enclosure. Ensure compatibility with 115V/250VAC 50/60Hz operational environments to maintain regulatory compliance.

Selection Notes

Select this component for applications requiring single-stage common mode interference suppression in single-phase circuits. Consider the 3A current rating and 250VAC maximum voltage as primary selection criteria. Evaluate the wire lead termination style against available board or terminal space requirements.

Part Context

This part belongs to the Qualtek 851 Series of general-purpose single-stage filters. These components are engineered to provide cost-effective suppression of conducted emissions. The series supports various current and voltage configurations within the single-phase EMC/EMI line filter category.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.