DRQ74-102-R

Arrays, Signal Transformers Overview

The DRQ74-102-R is a shielded drum core power inductor from the DRQ series by Eaton Electronics Division. It features a dual-coil array configuration with two independent windings housed in a surface-mount package measuring 7.60mm x 7.60mm x 4.45mm. The component provides an inductance of 1 mH with a tolerance of ±20%. Key electrical parameters include a DC resistance (DCR) of 3.89 ohms and a rated current of 270 mA. The saturation current is specified at 310 mA, and it operates within a temperature range of -40°C to 125°C.

Arrays, Signal Transformers Feature Summary

• Dual-winding shielded drum core construction for high power density
• Surface-mount design suitable for automated assembly processes
• Integrated shielding to minimize electromagnetic interference

Arrays, Signal Transformers Applications

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

Arrays, Signal Transformers Procurement Notes

Verify the complete part number including the suffix '-R' which indicates tape and reel packaging. Confirm RoHS3 compliance status as per the latest manufacturer documentation. Check for any recent Product Change Notifications (PCN) regarding manufacturing lines or material updates before finalizing procurement orders.

Arrays, Signal Transformers Selection Notes

Select this component when a dual-inductor solution is required for coupled or independent winding applications in compact designs. Ensure the operating current remains below the 270 mA rated limit to prevent excessive heating. Verify that the 1 mH inductance value aligns with the specific frequency requirements of the target circuit topology.

Arrays, Signal Transformers Part Context

This component belongs to the DRQ series, which represents dual-winding variants of the standard DR series shielded drum core inductors. The '74' designation typically refers to the physical case size code within the Eaton Coiltronics portfolio. These parts are designed to replace discrete inductor pairs in space-constrained power electronics.

Arrays, Signal Transformers Replacement Considerations

Cross-reference with other DRQ series members such as DRQ74-471-R or DRQ74-101-R if different inductance values are needed while maintaining the same footprint. Single-winding equivalents from the DR series may require board layout adjustments.