744235220

Overview

The Würth Elektronik 744235220 is a WE-CNSW series surface-mount common-mode choke designed for signal line filtering. It features two lines with an inductance of 22 µH at 100 kHz and a DC resistance (DCR) of 2.65 Ohms. The component supports a rated current of 250mA and offers an impedance of 8 kOhms at 100 MHz. It operates within a temperature range of -40°C to 125°C, meets AEC-Q200 standards, and utilizes a compact 4.50mm x 3.20mm footprint.

Feature Summary

• Provides effective common-mode noise suppression for differential signal lines
• Complies with automotive reliability qualification standards
• Utilizes a compact surface-mount package for space-constrained designs

Applications

• Automotive data bus signal line filtering
• High-speed digital interface protection
• EMI suppression in compact electronic modules

Procurement Notes

Verify the specific ordering suffix to ensure correct packaging configuration, such as tape and reel or cut tape, matches production requirements. Confirm that the AEC-Q200 qualification status aligns with target application standards. Check RoHS compliance documentation for environmental regulatory adherence. Ensure the selected variant corresponds to the exact electrical specifications required for the circuit design.

Selection Notes

Select this component when designing circuits requiring common-mode noise attenuation for low-current signal lines. The 250mA rating suits sensitive data interfaces rather than power transmission. Consider the 2.65 Ohm DCR impact on signal integrity and voltage drop. The 8 kOhms impedance at 100 MHz indicates suitability for high-frequency interference mitigation in compact form factors.

Part Context

This part belongs to the WE-CNSW series from Würth Elektronik, specialized for surface-mount applications. It addresses the need for reliable EMI filtering in automotive and industrial environments where space is limited. The series emphasizes robust construction and consistent performance across wide temperature ranges for critical signal paths.

Replacement Considerations

Consult official manufacturer substitution guides for verified equivalents. Cross-reference inductance, current rating, and impedance characteristics carefully. Verify package dimensions and pinout compatibility before integrating alternative components into existing layouts.

FAQ

What is the maximum operating temperature for the 744235220?

The component is rated for operation up to 125°C.

Does this component meet automotive quality standards?

Yes, it is qualified according to the AEC-Q200 standard.