7111-RC

Overview

The Bourns 7111-RC is a common mode choke from the 7100 series, designed for PCB mounting with radial termination. It features a ferrite core and offers an inductance of 850 uH at a test frequency of 1 kHz with a tolerance of 15%. The component supports a maximum DC current of 3 A and has a maximum DC resistance of 30 mOhms. It operates within a temperature range of -55 C to +105 C. The physical dimensions are 15.24 mm in length, 11.43 mm in width, and 11.43 mm in height.

Feature Summary

• Dual winding configuration for effective noise suppression
• Low radiation characteristics suitable for sensitive circuits
• High dielectric strength rated at 1000Vrms
• Mounted on VW-1 rated header for safety compliance

Applications

• Common mode noise filtering in power supply lines
• EMI suppression in industrial electronic equipment
• Signal integrity protection in communication interfaces

Procurement Notes

Verify the specific RoHS compliance status through official manufacturer documentation before integration, as regulatory details may vary by production batch. Confirm that the vertical package style with four PC pins matches your PCB footprint requirements. Ensure the operating temperature range of -55 C to +105 C aligns with your system's thermal environment. Cross-reference the datasheet for any recent product change notices that might affect mechanical or electrical specifications.

Selection Notes

Select this component when high current capacity and low DC resistance are critical for maintaining efficiency in common mode applications. The 850 uH inductance provides substantial attenuation for common mode interference without significant signal loss. Consider the unshielded design if space constraints allow, but ensure adequate layout spacing to minimize potential magnetic coupling with nearby components. Verify that the radial leaded format fits your assembly process capabilities.

Part Context

This part belongs to the Bourns 7100 series of common mode chokes, which are engineered for robust performance in demanding environments. The series utilizes ferrite cores to achieve high inductance values while maintaining low radiation profiles. These components are typically used in scenarios requiring reliable noise suppression for both power and signal lines, offering a balance between electrical performance and physical durability.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.