BWCU00322518271M00

Overview

The BWCU00322518271M00 is a surface-mount common mode choke manufactured by Pulse Electronics. It features an impedance of 270 Ohms at 100 MHz and supports a maximum DC current of 640 mA with a DC resistance of 130 mOhms. The component operates within a temperature range of -40°C to +105°C and utilizes an unshielded design suitable for USB applications.

Feature Summary

• Provides common mode noise suppression for high-speed data lines
• Designed for surface-mount PCB integration
• Supports dual-line signal filtering

Applications

• USB interface protection
• IEEE 1394b signal conditioning
• LVDS line filtering

Procurement Notes

Verify the specific impedance value against official datasheets, as distributor listings may vary between 90 Ohms and 270 Ohms for this series. Confirm package dimensions and pin configuration match the target footprint before procurement to ensure compatibility with assembly processes.

Selection Notes

Select this component when designing circuits requiring common mode rejection for USB or LVDS interfaces. Ensure the operating current remains below the 640 mA limit to prevent saturation. Verify thermal management requirements given the 105°C maximum operating temperature rating.

Part Context

This part belongs to the BWCU series of SMD common mode chokes from Pulse Electronics. These components are engineered for compact electronic designs requiring effective electromagnetic interference mitigation in small form factors.

Replacement Considerations

Check for direct substitutes within the BWCU series that match the 3.2x2.5mm footprint. Verify equivalent impedance and current ratings if considering alternative manufacturers.