74275812

Overview

The Würth Elektronik 74275812 is a snap-on ferrite core designed for electromagnetic interference suppression. It features a circular cross-section with an internal diameter of 5.00 mm and an external diameter of 19.00 mm. The component length measures 30.30 mm. It provides an impedance of 200 Ω at 100 MHz and 125 Ω at 25 MHz. The unit incorporates safety key technology to ensure secure installation on cables.

Feature Summary

• Incorporates safety key technology to guarantee electromagnetic compatibility and secure locking on cables
• Designed as a split core ferrite for rapid snap-on installation without cable disconnection
• Constructed from materials optimized for high-frequency noise attenuation in general electronic equipment

Applications

• Electromagnetic interference suppression in general electronic equipment
• Noise filtering for round cables requiring secure mechanical retention
• Compliance enhancement for digital devices subject to EMC regulations

Procurement Notes

Verify the specific impedance requirements against application frequency spectra, noting the 200 Ω rating at 100 MHz. Confirm that the 5.00 mm internal diameter accommodates the target cable bundle securely. Ensure the safety key mechanism aligns with assembly constraints. Cross-reference the official datasheet for thermal limits and material specifications before finalizing procurement decisions.

Selection Notes

Select this component when a snap-on ferrite with integrated security locking is required for round cables. The 5.00 mm bore size suits specific wire gauges or bundled conductors. Choose based on the need for 200 Ω impedance at 100 MHz for effective high-frequency noise reduction. Consider the physical dimensions of 19.00 mm outer diameter for spatial clearance within the enclosure design.

Part Context

This part belongs to the STAR-BUENO series of snap ferrites from Würth Elektronik. The series emphasizes secure installation through safety key technology, distinguishing it from standard open-loop cores. It serves as a solution for maintaining electromagnetic compatibility in environments where vibration or accidental removal could compromise shielding integrity.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing assembly tools due to the unique safety key mechanism before attempting substitution.