FB73-287

Overview

The Bourns FB73-287 is a solid ferrite cable core from the FB series, designed for electromagnetic interference suppression. It features a round design with an inner diameter of 0.104 inches (2.64 mm), an outer diameter of 0.311 inches (7.89 mm), and a length of 0.312 inches (7.92 mm). The component utilizes material grade 73, optimized for operation around 40 MHz. It is classified as a free-hanging type and is currently marked as obsolete in the manufacturer's lifecycle.

Feature Summary

• Solid construction provides a fixed geometry for consistent magnetic properties without assembly complexity.

Applications

• Electromagnetic interference suppression on cables

Procurement Notes

Verify availability status carefully as this part is listed as obsolete. Confirm that the specific material grade 73 meets the required frequency characteristics for the intended application. Ensure physical dimensions align with cable constraints before finalizing procurement decisions.

Selection Notes

Select this component when a solid, non-split ferrite core is required for permanent installation. The 2.64 mm inner diameter dictates the maximum cable size. Material 73 suitability should be validated against the specific noise spectrum, particularly near 40 MHz.

Part Context

This item belongs to the FB series of cable ferrites manufactured by Bourns Inc. The series offers various sizes and materials to address different EMI needs. The FB73-287 specifically represents a standard size option within this lineup, utilizing the widely recognized 73 material composition for general-purpose high-frequency attenuation.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, alternative sourcing or redesign may be necessary.