7427523

Overview

The Würth Elektronik 7427523 is a WE-CMS series common mode SMT bead array designed for surface mount technology. It provides common mode impedance of 83 Ohms at 100 MHz with a rated current (IR) of 21 A and a DC resistance (RDC) of 3 mOhms. The component operates within a temperature range of -40°C to +125°C. Packaged in a compact form factor suitable for high-density PCB layouts, it effectively suppresses electromagnetic interference in differential signal lines while maintaining low insertion loss and high current handling capabilities.

Feature Summary

• Integrated common mode choke array structure for multi-line suppression
• High current handling capability suitable for power and data lines
• Low DC resistance to minimize voltage drop and power loss
• Surface mount design optimized for automated assembly processes

Applications

• Differential data bus protection in industrial equipment
• EMI suppression for USB and high-speed interface circuits
• Common mode noise filtering in automotive electronic control units
• Signal integrity enhancement in server and networking hardware

Procurement Notes

Verify the specific package dimensions and pin configuration against the official datasheet before integration. Confirm that the 21 A rated current aligns with your circuit's peak load requirements. Ensure the 83 Ohm impedance at 100 MHz meets your EMI filtering specifications. Check for RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when high current capacity is critical alongside common mode noise reduction. The low RDC makes it suitable for applications where signal attenuation must be minimized. Consider the SMT footprint constraints and ensure adequate thermal clearance on the PCB layout for optimal performance under continuous load conditions.

Part Context

This part belongs to the WE-CMS family of common mode chokes from Würth Elektronik. These components are engineered for robust EMI suppression in demanding environments. The series offers various impedance and current ratings to suit different signal line widths and power requirements across consumer, industrial, and automotive sectors.

Replacement Considerations

Consult the manufacturer's cross-reference guide for verified alternatives. Ensure any substitute matches the 83 Ohm impedance, 21 A current rating, and compatible package dimensions. Verify that replacement parts maintain equivalent thermal and electrical performance characteristics.