7427140S

Overview

The Würth Elektronik 7427140S is a hinged snap ferrite ring from the STAR-TEC series, designed for rapid installation on cables. It features an internal diameter of 5 mm and utilizes 4W620 ferrite material. The component provides an impedance of 98 Ω at 25 MHz and 182 Ω at 100 MHz. External dimensions are 32.5 mm in length, 18.8 mm in width, and 13.2 mm in height. It operates within a temperature range of -25°C to +105°C.

Feature Summary

• Hinged design with integrated safety key for secure closure
• Rapid installation mechanism eliminates need for tools during assembly
• High permeability ferrite material optimized for broadband noise suppression

Applications

• Suppression of electromagnetic interference on power cables
• Noise reduction on computer data transmission lines
• EMI mitigation on circuit board wiring harnesses

Procurement Notes

Verify the specific impedance requirements against application frequency spectra before ordering. Confirm that the 5 mm inner diameter accommodates the target cable bundle without excessive strain. Ensure compliance with RoHS and REACH regulations if required by the end product specifications.

Selection Notes

Select this model when tool-free installation speed is critical for production efficiency. The hinged construction allows for retrofitting onto existing cable assemblies without disconnection. Choose based on the required impedance profile at 25 MHz or 100 MHz relative to the noise frequencies present in the system.

Part Context

This component belongs to the STAR-TEC family of split ferrite cores manufactured by Würth Elektronik. The series offers various inner diameters and impedance ratings to suit different cable sizes and noise environments. The 7427140S specifically addresses applications requiring quick access and repeated opening of the magnetic core.

Replacement Considerations

Direct substitutes include part number 74271142S, which shares identical electrical characteristics and physical dimensions within the same series.