74271131S

Overview

The Würth Elektronik 74271131S is a split-core ferrite clamp from the STAR-TEC series, designed for rapid installation on cables. It features a black housing with integrated safety key technology to prevent unauthorized removal. The core material provides an impedance of 145 ohms at 25 MHz and 310 ohms at 100 MHz. It accommodates a cable diameter of 7.5 mm. External dimensions are 40.5 mm in length, 24.5 mm in width, and 21 mm in height. The operating temperature range spans from -25°C to +105°C.

Feature Summary

• Snap-fit design enables quick manual installation without tools
• Integrated safety key mechanism secures the clamp against accidental opening
• Split-core construction allows attachment to existing cabling

Applications

• EMI suppression on power cables
• Signal integrity enhancement in data lines
• Compliance testing support for electromagnetic emissions

Procurement Notes

Verify the exact part number suffix and manufacturer documentation when sourcing. Confirm that the component includes the specific safety key feature described in official datasheets. Ensure compatibility with the target cable diameter before procurement. Check for RoHS compliance status in the latest product release notes.

Selection Notes

Select this component when tool-free installation is required for field applications. The split design is suitable for retrofits where cable disconnection is impractical. Consider the impedance profile at relevant frequencies to ensure effective noise attenuation. Verify that the physical dimensions fit within the available enclosure space.

Part Context

This component belongs to the STAR-TEC series of snap-on ferrite cores. It is distinct from solid ring cores by its hinged design. The series emphasizes ease of use in manufacturing and maintenance environments. Related accessories include dedicated safety keys for additional security.

Replacement Considerations

No public confirmed substitute part numbers are available.