RN212-1.2-02

Overview

The Schaffner RN212-1.2-02 is a vertical through-hole common mode choke designed for power line filtering. It features a ferrite core and operates within a temperature range of -40°C to +100°C. Key electrical parameters include an inductance of 6.8 mH at a test frequency of 10 kHz, a maximum DC current rating of 1.2 A, and a typical DC resistance of 250 mOhms. The component has a rated AC voltage of 300 V and utilizes a four-pin PC pin package with dimensions of approximately 18 mm x 12.5 mm x 20 mm.

Feature Summary

• Provides common mode noise suppression for single-phase power lines using a current compensated choke design.
• Constructed with a ferrite core material for effective electromagnetic interference attenuation.
• Supports vertical PCB mounting via through-hole termination for secure mechanical installation.

Applications

• Electromagnetic compatibility filtering in AC power input stages
• Noise suppression for electronic equipment operating on 50/60 Hz mains
• Protection circuits requiring common mode choke isolation

Procurement Notes

Verify the specific inductance tolerance and DC resistance values against the official datasheet before integration, as manufacturing batches may exhibit variations within specified limits. Confirm that the 300V AC rating aligns with your system's peak voltage requirements. Ensure the physical footprint matches your PCB layout constraints, particularly the vertical height and pin spacing. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability.

Selection Notes

Select this component when a 6.8 mH inductance is required for common mode noise reduction at 1.2 A continuous current. The vertical form factor is suitable for applications where board space is limited but height clearance is available. Consider the unshielded nature of the device regarding proximity to sensitive signal traces. Evaluate the thermal performance at the maximum operating temperature of 100°C to ensure reliability under load.

Part Context

This component belongs to the Schaffner RN series of common mode chokes, which are engineered for general-purpose EMC filtering in power supplies and industrial electronics. The series offers various inductance and current ratings to suit different power line requirements. These chokes are widely used in consumer appliances, IT equipment, and automotive systems to meet regulatory emission standards.

Replacement Considerations

The part number alias 816547-SF is documented for this component. Verify pinout compatibility and electrical specifications before substituting with other Schaffner RN series variants or competitor common mode chokes.