DRQ127-331-R

Arrays, Signal Transformers Overview

The DRQ127-331-R is a shielded two-coil inductor array from the Eaton DRQ series, designed for surface-mount applications. It features a ferrite drum core and measures 12.50mm x 12.50mm x 8.00mm. The component provides a parallel inductance of 323.6 µH with a tolerance of ±20%, while series connection yields 1.294 mH. DC resistance is 574 mΩ in parallel and 2.3 Ω in series. Rated current is 1.04 A (parallel) and 522 mA (series), with saturation currents of 2.01 A and 1.01 A respectively. It operates between -40°C and 125°C.

Arrays, Signal Transformers Feature Summary

• Dual-coil configuration allowing flexible series or parallel circuit integration
• Shielded drum core construction to minimize electromagnetic interference
• Surface-mount design optimized for automated PCB assembly processes

Arrays, Signal Transformers Applications

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

Arrays, Signal Transformers Procurement Notes

Verify the manufacturer part number DRQ127-331-R against official Eaton documentation to ensure authenticity. Confirm RoHS3 compliance status and moisture sensitivity level MSL 1 requirements during storage and handling. Check for recent production changes via published PCNs regarding manufacturing lines or packaging updates before finalizing procurement orders.

Arrays, Signal Transformers Selection Notes

Select this component when a dual-inductor solution with high magnetic shielding is required for power conversion topologies. Ensure the operating current does not exceed 1.04 A in parallel mode or 522 mA in series mode. Verify that the physical footprint of 12.50mm square fits the board layout constraints and thermal management requirements for the specific application environment.

Arrays, Signal Transformers Part Context

This part belongs to the Eaton DRQ series of shielded drum core inductors. The series offers various inductance values within a standardized 12.50mm x 12.50mm package. These components are engineered for high-current power electronics applications, providing reliable performance in compact designs where space efficiency and electromagnetic compatibility are critical design factors.

Arrays, Signal Transformers Replacement Considerations

Bourns Inc. parts may serve as potential substitutes if electrical parameters match. Verify pinout compatibility and physical dimensions before implementation.