DRQ73-151-R

Arrays, Signal Transformers Overview

The DRQ73-151-R is a shielded dual-coil surface-mount inductor array from Eaton's DRQ series. It features a ferrite drum core and measures 7.60mm x 7.60mm x 3.55mm. The component provides an inductance of 150.9 µH when coils are connected in parallel and 603.6 µH in series, with a tolerance of ±20%. DC resistance is 851 mΩ in parallel configuration and 3.41 Ω in series. Rated currents are 580 mA (parallel) and 289 mA (series), while saturation currents reach 580 mA (parallel) and 320 mA (series).

Arrays, Signal Transformers Feature Summary

• Dual-winding architecture allows flexible circuit integration as independent or coupled inductors.
• Shielded drum core design minimizes electromagnetic interference and supports high-density mounting.
• Operates reliably within an extended temperature range up to 125°C.

Arrays, Signal Transformers Applications

• SEPIC converter input/output filtering
• Buck-boost power supply stages
• Coupled inductor implementations for interleaved conversion

Arrays, Signal Transformers Procurement Notes

Verify the specific electrical parameters against the manufacturer datasheet before integration, as values may vary based on connection topology. Confirm that the physical footprint matches the PCB land pattern dimensions of 7.60mm by 7.60mm. Ensure thermal management strategies account for the maximum operating temperature of 125°C and the specific DC resistance characteristics in the chosen circuit configuration.

Arrays, Signal Transformers Selection Notes

Select this component when a shielded dual-coil solution is required for non-isolated topologies like SEPIC or buck-boost converters. The choice depends on whether the application benefits from coupled operation or independent filtering. Evaluate the saturation current limits relative to peak load conditions to prevent magnetic saturation. Consider the higher DC resistance in series mode if low-loss performance is critical.

Arrays, Signal Transformers Part Context

This part belongs to the DRQ series of shielded drum core power inductors manufactured by Eaton Electronics Division. The series is designed for surface-mount applications requiring robust magnetic shielding. The DRQ73-151-R specifically utilizes a ferrite core material to support efficient energy storage in switching power supplies while maintaining compact dimensions suitable for modern electronic assemblies.

Arrays, Signal Transformers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative components by matching inductance values, saturation current ratings, and physical package dimensions to ensure seamless integration without redesigning the PCB layout.

Arrays, Signal Transformers FAQ

Can the two coils be used independently?

Yes, the dual windings can function as separate inductors or be utilized in coupled configurations depending on the circuit requirements.

What is the maximum operating temperature?

The component is rated for a maximum total temperature operation of 125°C.