RN142-0.5-02-82M

Overview

The Schaffner RN142-0.5-02-82M is a two-line common mode choke from the RN series, designed for PCB mounting via through-hole termination. It features a ferrite core and provides an inductance of 82 mH at a test frequency of 10 kHz, with tolerances of -30% to +50%. The component supports a maximum DC current of 0.5 A and has a typical DC resistance of 2.7 Ohms. Rated for 300 VDC, it operates within a temperature range of -40°C to +105°C. The unshielded unit measures approximately 32.5 mm x 33.1 mm x 19.7 mm and complies with UL 94V-0 standards.

Feature Summary

• Provides high common mode noise attenuation with 82 mH inductance for effective EMI suppression
• Designed for horizontal PCB mounting using through-hole technology for secure mechanical attachment
• Utilizes a ferrite core construction optimized for EMC filtering applications

Applications

• Power supply input stages requiring common mode noise reduction
• Electronic equipment adhering to strict EMC emission limits
• Industrial control systems utilizing low-current DC circuits

Procurement Notes

Verify the specific tolerance requirements against the datasheet, as the inductance allows for significant variation between -30% and +50%. Confirm that the 0.5 A current rating meets the operational demands of the target circuit. Ensure the physical dimensions fit the designated PCB footprint and that the through-hole pitch aligns with the manufacturing capabilities. Check for any specific regulatory certifications required for the end application.

Selection Notes

Select this component when a high-inductance common mode choke is needed for low-current DC lines. The 82 mH value offers substantial impedance to high-frequency noise. Consider the physical size constraints, as the horizontal mount design requires adequate board space. The 300 VDC rating suits low-voltage applications, while the wide temperature range ensures reliability in varied environments.

Part Context

This part belongs to the Schaffner RN series of EMC chokes, which are engineered for general-purpose electromagnetic interference suppression. The series includes various inductance values and current ratings to suit different circuit requirements. As a product of TE Connectivity / Schaffner, it integrates into broader power integrity solutions for electronic devices.

Replacement Considerations

RN142-0.5-02-82M is functionally equivalent to part number 816530-SF. Verify pin compatibility and inductance values when substituting with other common mode chokes from the same or competing manufacturers.