DRQ127-3R3-R

Arrays, Signal Transformers Overview

The DRQ127-3R3-R is a shielded surface-mount power inductor array manufactured by Eaton Electronics. It integrates two coils within a compact 12.50mm x 12.50mm x 8.00mm footprint. The component features a ferrite drum core and offers an inductance of 3.3 µH with a ±20% tolerance. Electrical specifications include a parallel DC resistance of 5.67 mΩ and a series DC resistance of 22.9 mΩ. Rated currents are 21.5 A (parallel) and 10.4 A (series), with saturation currents reaching 40 A (parallel) and 20 A (series). It operates reliably between -40°C and +125°C.

Arrays, Signal Transformers Feature Summary

• Dual-coil configuration allowing flexible series or parallel circuit integration
• Shielded drum core design minimizes electromagnetic interference
• High current handling capability for demanding power applications
• RoHS compliant construction suitable for modern manufacturing

Arrays, Signal Transformers Applications

• SEPIC converter circuits
• Power supply input filtering
• DC-DC converter stages

Arrays, Signal Transformers Procurement Notes

Verify the specific suffix 'R' to confirm reel packaging requirements against your assembly line capabilities. Confirm that the 12.50mm square footprint aligns with your PCB silkscreen and copper pad designs. Ensure thermal management strategies account for the specified operating temperature range up to 125°C during high-current operation.

Arrays, Signal Transformers Selection Notes

Select this component when dual-inductor functionality is required in a single SMD package to save board space. Choose the parallel configuration for higher current capacity and lower effective resistance. Opt for the series configuration if higher total inductance is needed while maintaining the same physical footprint constraints.

Arrays, Signal Transformers Part Context

This part belongs to the DRQ series of shielded drum core inductors from Eaton Electronics. The series provides various inductance values within a standardized 12.50mm x 12.50mm outline, facilitating consistent mechanical design across different power levels. It serves as a specialized alternative to discrete single inductors in multi-phase or complex topologies.

Arrays, Signal Transformers Replacement Considerations

Publicly confirmed substitute part numbers were not identified in the provided documentation.