RN122-2-02

Overview

The Schaffner RN122-2-02 is a current compensated common mode choke designed for PCB mounting via through-hole terminals. It features a ferrite core and operates within a temperature range of -40°C to +100°C. The component supports a maximum DC current of 2 A with a maximum DC resistance of 630 mOhms. It provides an inductance of 5 mH, tested at 10 kHz, and is rated for 300 VDC. The unshielded unit measures 27 mm x 28 mm x 16.5 mm.

Feature Summary

• Current compensated design for effective noise suppression
• Horizontal PCB mount configuration for space efficiency
• High potential insulation strength between windings and housing

Applications

• Power supply input filtering
• EMC/RFI suppression in electronic equipment
• Signal line protection

Procurement Notes

Verify the specific part number against official TE Connectivity or Schaffner documentation, as availability may vary. Confirm that the 5 mH inductance value aligns with your circuit requirements. Ensure the through-hole footprint dimensions match your PCB layout. Check for any updated compliance certifications required for your target market before finalizing procurement.

Selection Notes

Select this component when a 2 A current rating and 5 mH inductance are required for common mode noise reduction. The horizontal form factor suits applications with limited vertical clearance. Verify that the 630 mOhm DC resistance meets your power loss constraints. Ensure the operating environment stays within the specified -40°C to +100°C temperature range for reliable performance.

Part Context

This component belongs to the RN series of EMC chokes manufactured by Schaffner, now part of TE Connectivity. The series is characterized by high-performance ferrite cores and robust construction for industrial and commercial applications. The RN122-2-02 specifically targets single-phase power line filtering needs where compact size and high current handling are prioritized.

Replacement Considerations

The RN122-2-02-6M8 is listed as a direct substitute. Verify electrical parameters and physical dimensions before replacement. Other RN series variants may offer different current or inductance ratings but require careful evaluation of compatibility.