DRQ73-330-R

Arrays, Signal Transformers Overview

The DRQ73-330-R is a shielded drum core power inductor array manufactured by Eaton Electronics Division. It features two coils with a ferrite core and surface mount construction. The nominal inductance is 33 µH with ±20% tolerance. In parallel configuration, it offers 34.41 µH inductance, 166 mΩ DCR, and 1.35 A saturation current. In series configuration, it provides 137.6 µH inductance, 665 mΩ DCR, and 680 mA saturation current. The component operates between -40°C and 125°C, measures 7.60mm x 7.60mm x 3.55mm, and is tested at 100 kHz.

Arrays, Signal Transformers Feature Summary

• Dual-coil shielded array design for compact circuit integration
• Ferrite drum core construction for high-power handling
• Configurable electrical characteristics via series or parallel connection

Arrays, Signal Transformers Applications

• SEPIC converter circuits
• Power supply input/output filtering
• DC-DC converter energy storage

Arrays, Signal Transformers Procurement Notes

Verify the specific datasheet version to confirm pinout orientation and thermal derating curves. Ensure the PCB footprint matches the 7.60mm x 7.60mm package dimensions. Confirm that the selected operating current remains below the saturation limits defined for the intended series or parallel configuration to maintain inductance stability.

Arrays, Signal Transformers Selection Notes

Select this component when dual-inductor functionality is required in a single SMD package. Choose the parallel configuration for lower resistance and higher current applications, or the series configuration for higher inductance values. Verify that the 125°C maximum operating temperature aligns with the system's thermal environment requirements.

Arrays, Signal Transformers Part Context

This part belongs to the DRQ Series of shielded drum core inductors from Eaton Electronics. The series is designed for high-power surface-mount applications requiring robust magnetic shielding. The DRQ73-330-R specifically utilizes a two-coil architecture within the standard 73 case size, distinguishing it from single-coil variants in the broader DR family.

Arrays, Signal Transformers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.