BWCU00322518801M00

Overview

The BWCU00322518801M00 is a two-line surface mount common mode choke manufactured by Pulse Electronics. It features an impedance of 800 Ohms at a test frequency of 100 MHz and supports a maximum DC current of 850 mA. The component has a maximum DC resistance of 200 mOhms and operates within a temperature range of -40°C to +105°C. Its physical dimensions are 3.2 mm in length, 2.5 mm in width, and 1.8 mm in height.

Feature Summary

• Provides common mode noise suppression for high-speed data lines
• Designed for surface mount PCB integration
• Unshielded construction suitable for compact layouts

Applications

• USB 2.0 interface protection
• IEEE 1394b (FireWire) signal filtering
• LVDS (Low-Voltage Differential Signaling) line conditioning

Procurement Notes

Verify the specific impedance value against design requirements, as sources indicate 800 Ohms at 100 MHz. Confirm the package dimensions match the footprint, noting the 3.2 x 2.5 mm outline. Ensure the 850 mA current rating meets the circuit's operational needs. Check RoHS compliance status if required by project specifications.

Selection Notes

Select this component for applications requiring significant common mode attenuation on differential pairs. The 800 Ohm impedance offers higher filtering than standard 90 Ohm variants. Consider the unshielded nature when planning layout spacing to minimize crosstalk. Verify thermal performance under continuous load conditions given the 200 mOhm DCR.

Part Context

This part belongs to the BWCU series of SMD common mode chokes from Pulse Electronics. It is specifically engineered for data bus protection in consumer electronics and industrial equipment. The series provides various impedance options to suit different signal integrity requirements while maintaining a small form factor.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.