78271132

Overview

The Würth Elektronik part number 78271132 is a snap-on ferrite core belonging to the WE-CAR-TEC series. It features an internal aperture diameter of 8.5 mm and provides an impedance of 235 Ω at 100 MHz, with approximately 125 Ω at 25 MHz. The component measures 24 mm in width and complies with AEC-Q200 standards for automotive applications. It is RoHS compliant and manufactured by Würth Elektronik GmbH & Co. KG.

Feature Summary

• Snap-on design with opening key for rapid installation on cables
• AEC-Q200 qualified for automotive electronic environments
• High impedance performance for effective EMI suppression

Applications

• Automotive cable harness noise suppression
• General electromagnetic interference mitigation
• Power and signal line filtering

Procurement Notes

Verify the specific datasheet version and material composition directly from the manufacturer before integration. Confirm that the 8.5 mm aperture accommodates the target cable bundle without excessive clearance. Ensure compliance with project-specific environmental and safety certifications.

Selection Notes

Select this component when an 8.5 mm aperture is required for automotive-grade EMI suppression. The 235 Ω impedance at 100 MHz suits high-frequency noise reduction. Consider the snap-on mechanism for assembly efficiency compared to split-ring designs requiring tools.

Part Context

This component is part of the WE-CAR-TEC family, designed specifically for robust electromagnetic compatibility solutions. It utilizes specialized ferrite materials optimized for automotive reliability. The series offers various aperture sizes to fit different cable diameters while maintaining consistent impedance characteristics across the product line.

Replacement Considerations

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