DR331-475BE

Common Mode Chokes Overview

The Bourns DR331-475BE is a surface mount common mode filter choke from the DR331 series. It features an inductance of 4.7 mH with a tolerance of ±25% and a bifilar winding configuration. The component supports a maximum DC current of 200 mA and has a maximum DC resistance of 700 mOhms. It operates within a temperature range of -40°C to +135°C. Physical dimensions are 9 mm length, 5.4 mm width, and 4.7 mm height, with a lead pitch of 3.7 mm.

Common Mode Chokes Feature Summary

• Bifilar winding design for data line filtering applications
• Ferrite core construction for effective common mode noise suppression
• Surface mount package suitable for automated PCB assembly

Common Mode Chokes Applications

• Data line filtering in electronic circuits
• Common mode noise suppression in signal paths
• EMI reduction in communication interfaces

Common Mode Chokes Procurement Notes

Verify the specific suffix BE against the manufacturer's latest datasheet to confirm exact electrical tolerances and material composition. Ensure the ordering quantity aligns with factory packaging specifications, typically provided in reels or cut tape formats. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement orders.

Common Mode Chokes Selection Notes

Select this component when a 4.7 mH inductance value is required for common mode noise attenuation in space-constrained designs. The 200 mA current rating suits low-power data lines. Verify that the 700 mOhm DCR meets circuit loss constraints. Confirm that the 9x5.4x4.7 mm footprint fits the available PCB real estate and solder mask definitions.

Common Mode Chokes Part Context

This part belongs to the Bourns DR331 series of surface mount data line chokes. These components are engineered for high-frequency noise suppression in compact electronic assemblies. The series utilizes ferrite materials to provide stable performance across a wide operating temperature range, ensuring reliability in various industrial and consumer applications.

Common Mode Chokes Replacement Considerations

Consult official substitution guides for equivalent inductance and current ratings. Verify pin compatibility and physical dimensions before replacing. No direct substitute part numbers are confirmed in public documentation.