RN212-0.4-02-27M

Overview

The Schaffner RN212-0.4-02-27M is a vertical through-hole common mode choke from the RN series, designed for PCB mounting. It features an inductance of 27 mH with a tolerance of -30% to +50%, tested at 10 kHz. The component supports a maximum DC current of 0.4 A and has a maximum DC resistance of 1400 mOhms. It operates within a temperature range of -40°C to +100°C. The physical dimensions are 18 mm x 12.5 mm x 20 mm, utilizing a four-pin vertical package.

Feature Summary

• Vertical through-hole construction for standard PCB integration
• Ferrite core design for effective common mode noise suppression
• High inductance value suitable for low-frequency interference filtering

Applications

• Power supply input filtering
• EMI suppression in electronic equipment
• Signal line protection against common mode noise

Procurement Notes

Verify the specific part number RN212-0.4-02-27M against official TE Connectivity or Schaffner datasheets to confirm electrical parameters and mechanical dimensions. Ensure compatibility with your PCB footprint and thermal requirements. Check for RoHS compliance status as indicated in the manufacturer's documentation. Confirm lead times and availability directly with authorized distributors, as these factors are subject to change and not included in this technical summary.

Selection Notes

Select this component when a high inductance value of 27 mH is required for common mode noise reduction in applications with a maximum current rating of 0.4 A. The vertical form factor and through-hole termination are suitable for boards requiring robust mechanical anchoring. Consider the operating temperature range of -40°C to +100°C for environmental suitability. Compare DC resistance and physical size constraints against alternative components in the RN series if space or efficiency is critical.

Part Context

This component belongs to the Schaffner RN series of common mode chokes, manufactured by TE Connectivity / Schaffner. The series offers various inductance and current ratings for different EMC requirements. The RN212 variant specifically denotes a vertical through-hole package with four pins, distinguishing it from surface mount or radial leaded options within the broader product portfolio.

Replacement Considerations

Consult official substitution guides for equivalent parts within the RN series or other Schaffner EMC lines. Verify that any substitute matches the 27 mH inductance, 0.4 A current rating, and 1400 mOhm DC resistance. Ensure mechanical compatibility with the 18 mm x 12.5 mm x 20 mm vertical footprint.