78271132S

Overview

The Würth Elektronik part number 78271132S is a split core ferrite clamp from the WE-CAR-TEC series. It features an aperture diameter of 8.5 mm and includes a key for opening. The component exhibits an impedance of 235 ohms at 100 MHz and approximately 125 ohms at 25 MHz. It complies with AEC-Q200 standards, indicating suitability for automotive applications. The unit is RoHS compliant and manufactured in Taiwan.

Feature Summary

• Split core design with a key mechanism for easy installation around existing cables
• AEC-Q200 qualified for automotive electronic environments
• High impedance performance for effective EMI suppression

Applications

• Automotive cable harness noise suppression
• General electromagnetic interference filtering
• Power supply line protection

Procurement Notes

Verify the specific manufacturing origin and compliance certificates directly with the supplier before procurement. Confirm that the AEC-Q200 qualification aligns with your project's automotive reliability requirements. Ensure the 8.5 mm aperture accommodates the target cable diameter without excessive clearance that could reduce attenuation efficiency.

Selection Notes

Select this component when a non-invasive solution for adding ferrite suppression to existing wiring is required. The split core design eliminates the need to disconnect cables during installation. Consider the 235 ohm impedance at 100 MHz as the primary metric for high-frequency noise reduction capabilities in the target application spectrum.

Part Context

This component belongs to the WE-CAR-TEC series, which specializes in snap-on ferrite cores designed for rapid deployment on cables. The series provides a practical alternative to traditional through-hole ferrites where cable disconnection is impractical or impossible. The inclusion of a key ensures secure closure after installation.

Replacement Considerations

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