BWCU00322518271Y00

Overview

The BWCU00322518271Y00 is a two-line surface mount common mode choke manufactured by Pulse Electronics. It features an impedance of 270 Ohms at a test frequency of 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 PCB mounting.

Feature Summary

• Provides common mode noise suppression for differential signal lines
• Designed specifically for high-speed digital interface protection
• Utilizes a compact surface mount form factor for space-constrained layouts

Applications

• USB 2.0 interface circuits
• IEEE 1394b (FireWire) connections
• LVDS signal transmission lines

Procurement Notes

Verify the specific impedance value against project requirements, as datasheet listings may vary between 90 Ohms and 270 Ohms for similar series codes. Confirm the manufacturer source directly with Pulse Electronics or authorized distributors to ensure authenticity. Check RoHS compliance status prior to final integration into regulated assemblies.

Selection Notes

Select this component when designing for USB or FireWire applications requiring moderate noise attenuation. Ensure the 640 mA current rating exceeds the peak operational load of the target interface. Verify that the 270 Ohm impedance aligns with the signal integrity specifications of the connected high-speed data lines.

Part Context

This part belongs to the BWCU series of SMD common mode chokes from Pulse Electronics. These components are engineered for EMI suppression in portable electronics and computer peripherals. The series offers various impedance options to match different signal frequencies and noise profiles while maintaining low insertion loss.

Replacement Considerations

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