DR127-331-R

Fixed Inductors Overview

The DR127-331-R is a shielded drum core wirewound inductor from the Eaton DR series, designed for surface mount applications. It features a 330 µH nominal inductance with a ±20% tolerance and a test frequency of 100 kHz. The component has a nonstandard package measuring 12.50mm x 12.50mm x 8.00mm. Key electrical parameters include a DC resistance (DCR) of 574 mΩ, a rated current of 1.04 A, and a saturation current of 2.01 A. It operates within a temperature range of -40°C to 125°C.

Fixed Inductors Feature Summary

• Shielded drum core construction minimizes electromagnetic interference
• Wirewound design provides high power handling capabilities
• Surface mount format facilitates automated assembly processes

Fixed Inductors Applications

• Power supply filtering circuits
• DC-DC converter input/output stages
• General purpose signal conditioning

Fixed Inductors Procurement Notes

Verify the exact part number against official manufacturer documentation to ensure compatibility with specific circuit requirements. Confirm that the nonstandard package dimensions align with the intended PCB footprint. Check for any recent product change notices regarding manufacturing sources or material composition updates before finalizing procurement decisions.

Fixed Inductors Selection Notes

Select this component when a shielded, high-current inductor is required for space-constrained designs. The 12.5mm square footprint offers a balance between current capacity and board area. Ensure the operating current remains below the 1.04 A rated limit to maintain performance and reliability under specified thermal conditions.

Fixed Inductors Part Context

This component belongs to the Eaton DR series of shielded drum core inductors. The series is characterized by its wirewound construction and robust shielding, making it suitable for demanding power electronics applications. The DR127-331-R specifically utilizes a ferrite core material to achieve its magnetic properties.

Fixed Inductors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify compatibility with alternative components by matching inductance, current ratings, and physical dimensions through official manufacturer cross-reference tools.