DR334A-474BE

Common Mode Chokes Overview

The Bourns DR334A-474BE is a single-phase surface mount common mode choke designed for EMI suppression. It features an inductance of 470 µH at 100 kHz and a DC resistance (DCR) of 280 mΩ. The component supports a maximum current rating of 500 mA with voltage ratings of 80 V DC and 42 V AC. It provides 2 kΩ impedance at 2 MHz and operates within a temperature range of -40°C to +135°C. The package dimensions are 9 mm length, 5.8 mm width, and 3.6 mm height.

Common Mode Chokes Feature Summary

• AEC-Q200 qualified for automotive reliability standards
• Surface mount design for automated assembly
• High thermal stability up to 135°C

Common Mode Chokes Applications

• Automotive power line filtering
• Single-phase EMI suppression circuits
• Compact electronic device power inputs

Common Mode Chokes Procurement Notes

Verify the specific suffix 'BE' against the manufacturer's official datasheet to confirm exact packaging and tape-and-reel specifications. Ensure the selected variant matches the required AEC-Q200 qualification status if used in automotive applications. Cross-reference the part number with the latest Bourns documentation to confirm availability of the 470 µH value and 500 mA rating before finalizing procurement.

Common Mode Chokes Selection Notes

Select this component when space-constrained designs require a single-phase common mode filter with high thermal endurance. The 500 mA current rating suits low-power signal or control lines rather than high-current power distribution. Verify that the 280 mΩ DCR meets system loss requirements and that the 470 µH inductance provides sufficient attenuation for the target noise frequencies.

Common Mode Chokes Part Context

This part belongs to the Bourns DR334A series of surface mount common mode chokes. The series is engineered for compact EMI filtering solutions in modern electronics. The DR334A-474BE specifically denotes the 470 µH inductance variant within this lineup, offering a balance between size and filtering performance for sensitive circuit protection.

Common Mode Chokes Replacement Considerations

Consult the official Bourns replacement guide for direct equivalents. Verify pin compatibility and electrical parameters such as inductance tolerance and current rating before substituting.