DRQ74-4R7-R

Arrays, Signal Transformers Overview

The DRQ74-4R7-R is a shielded two-coil surface-mount inductor array from the Eaton DRQ series. It features a ferrite core and wire-wound construction within a non-standard 7.60mm x 7.60mm x 4.45mm package. The component provides an inductance of 5.182 µH in parallel connection and 20.73 µH in series, with a tolerance of ±20%. DC resistance is 25.4 mΩ in parallel and 102 mΩ in series. Rated current is 3.34 A (parallel) and 1.67 A (series), while saturation current reaches 4.37 A (parallel) and 2.19 A (series). It operates between -40°C and 125°C.

Arrays, Signal Transformers Feature Summary

• Dual-coil configuration enabling flexible series or parallel circuit integration
• Shielded drum core design to minimize electromagnetic interference
• High saturation and rated current capabilities for power handling
• RoHS3 compliant lead-free construction

Arrays, Signal Transformers Applications

• SEPIC converter transformer applications
• Buck and boost DC-DC converter inductors
• Coupled inductor implementations
• VRM inductors for CPU and DDR power supplies

Arrays, Signal Transformers Procurement Notes

Verify the specific suffix and manufacturer part number against official Eaton documentation to ensure correct electrical characteristics. Confirm RoHS3 compliance status and moisture sensitivity level requirements prior to procurement. Cross-reference package dimensions and pinout configurations with target PCB layout specifications to guarantee mechanical compatibility.

Arrays, Signal Transformers Selection Notes

Select this component when dual-inductor functionality is required in a compact surface-mount footprint. The DRQ74-4R7-R offers distinct parallel and series inductance values suitable for coupled magnetic designs. Evaluate thermal performance and current ratings against peak load conditions. Ensure the operating temperature range meets system environmental constraints.

Arrays, Signal Transformers Part Context

This component belongs to the Eaton DRQ series of shielded drum core inductors. The series utilizes wire-wound technology on ferrite cores to provide stable inductance values. These arrays are designed for high-current power supply applications requiring space-efficient solutions. The DRQ74-4R7-R specifically targets converters needing coupled inductor or transformer functionalities.

Arrays, Signal Transformers Replacement Considerations

Consult Eaton official documentation for verified substitute part numbers within the DRQ series. Ensure replacement components match the required inductance, current ratings, and physical dimensions. Verify that alternative parts maintain compatible shielding and mounting specifications.