DRQ125-821-R

Arrays, Signal Transformers Overview

The DRQ125-821-R is a shielded dual-coil surface-mount inductor array from the Eaton Electronics DRQ series. It features a ferrite drum core and measures 12.50 mm x 12.50 mm with a height of 6.00 mm. The component provides an inductance of 828 nH per coil, with a total parallel inductance of 414 nH and series inductance of 3.312 µH at a test frequency of 100 kHz. It has a tolerance of ±20% and a maximum DC resistance of 0.77 mΩ in parallel configuration. The rated current is 135 A in parallel and 67.5 A in series, while saturation currents are 175.5 A (parallel) and 87.75 A (series). It operates within a temperature range of -40°C to +125°C.

Arrays, Signal Transformers Feature Summary

• Dual-winding architecture allows flexible circuit integration via parallel or series connections.
• Shielded drum core design minimizes electromagnetic interference and stray magnetic fields.
• High-current capability supports demanding power delivery requirements.

Arrays, Signal Transformers Applications

• DC-DC converter output filtering
• Power supply input stages
• SEPIC converter topologies

Arrays, Signal Transformers Procurement Notes

Verify the specific electrical parameters against the official Eaton DRQ Series datasheet before implementation. Confirm that the package dimensions and pinout match the target PCB footprint. Ensure the selected configuration (parallel or series) aligns with the required current handling and inductance values for the application.

Arrays, Signal Transformers Selection Notes

Select this component when high current capacity and low DC resistance are critical. The dual-coil structure offers design flexibility for different voltage and current levels. Verify thermal performance under load conditions to ensure operation remains within the specified temperature limits.

Arrays, Signal Transformers Part Context

This part belongs to the Eaton DRQ series of shielded drum core inductors. The series is designed for high-current power applications requiring compact surface-mount solutions. The DRQ125 designation indicates a 12.5 mm square footprint size.

Arrays, Signal Transformers Replacement Considerations

Direct substitutes include other shielded dual-coil SMD inductors with similar current ratings and dimensions. Verify compatibility with existing PCB layouts and thermal management strategies when considering alternatives.

Arrays, Signal Transformers FAQ

Can the coils be connected in series?

Yes, the dual-winding design allows for series connection, resulting in higher inductance and lower current handling compared to parallel operation.

What is the core material used?

The component uses a ferrite drum core to provide shielding and stable inductance characteristics.