RN222-4-02

Overview

The Schaffner RN222-4-02 is a through-hole common mode choke from the RN series, rated for 4 A and 300 VDC. It features vertical board mount installation with PD2 pollution degree protection and UL 94V-0 flammability rating. The component operates within a temperature range of -40°C to +100°C and provides IP00 ingress protection. Designed for electromagnetic compatibility applications, it utilizes PCB terminal connections to suppress noise in DC power lines.

Feature Summary

• Vertical board mount configuration for direct PCB integration
• High thermal stability with UL 94V-0 material rating
• Robust construction suitable for PD2 pollution environments

Applications

• DC power line filtering in industrial equipment
• Electromagnetic interference suppression in control systems
• Noise reduction in automotive electronic modules

Procurement Notes

Verify the complete part number including suffixes such as '3M3' or '33' which indicate specific inductance values (e.g., 3.3 mH or 33 mH). The base model RN222-4-02 requires confirmation of the exact electrical parameter variant required for the circuit design before ordering.

Selection Notes

Select this component based on the 4 A current rating and 300 VDC voltage limit. Ensure the PCB layout accommodates the vertical mounting style and that the operating environment remains within the specified -40°C to +100°C temperature range for reliable performance.

Part Context

This component belongs to the Schaffner RN series of EMC chokes, designed for general-purpose noise suppression. It complements other Schaffner filters like the FN series by providing passive inductive filtering solutions for DC applications where common mode noise mitigation is critical.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative common mode chokes based on identical current, voltage, and inductance specifications.