74271221S

Overview

The Würth Elektronik 74271221S is a STAR-TEC Snap Ferrite Clamp On Core designed for cable applications. It features a square shape and utilizes 4W620 ferrite material. The component has an inner diameter of 10.5 mm and external dimensions of 42.2 mm in length, 33.6 mm in width, and 29.5 mm in height. It operates within a temperature range of -25°C to +105°C. The unit weighs 78 g and is supplied in trays with a factory pack quantity of 26.

Feature Summary

• Incorporates safety key technology for secure installation on cables
• Utilizes 4W620 ferrite material for effective noise suppression
• Features a snap-on design for rapid manual assembly without tools

Applications

• Cable noise suppression
• Electromagnetic interference filtering
• General electronic equipment EMI mitigation

Procurement Notes

Verify the specific impedance characteristics at required frequencies against application needs. Confirm that the 10.5 mm inner diameter accommodates the target cable bundle size. Ensure compliance with RoHS standards if required by the end product specifications. Check for any specific handling requirements due to the snap-fit mechanism integrity.

Selection Notes

Select this part when a tool-free installation method is preferred for ferrite clamping. The 4W620 material offers balanced performance for common frequency ranges. Consider the physical dimensions to ensure adequate clearance around the cable routing path. The safety key feature adds mechanical stability compared to standard split cores.

Part Context

This component belongs to the STAR-TEC series from Würth Elektronik, which specializes in snap-on ferrite cores. The series emphasizes ease of use through integrated locking mechanisms. The 74271221S variant specifically targets cables requiring moderate suppression capabilities with a 10.5 mm aperture.

Replacement Considerations

No public confirmed substitute part numbers are available.