DRQ125-4R7-R

Arrays, Signal Transformers Overview

The DRQ125-4R7-R is a shielded two-coil surface-mount inductor array manufactured by Eaton Electronics. It features a drum core construction with ferrite material, designed for high-current power applications. The component measures 12.50mm x 12.50mm with a maximum height of 6.00mm. Electrical specifications include an inductance of 5.274 µH in parallel connection and 21.1 µH in series connection. The DC resistance is 5.274 mΩ in parallel and 21.1 mΩ in series. Rated currents are 8.25 A (parallel) and 4.13 A (series), with saturation currents of 16.5 A (parallel) and 8.24 A (series).

Arrays, Signal Transformers Feature Summary

• Dual-coil configuration allowing flexible series or parallel circuit integration.
• Shielded drum core design minimizes electromagnetic interference.
• High current handling capability suitable for power supply filtering.

Arrays, Signal Transformers Applications

• DC-DC converter output filtering
• Power distribution network decoupling
• SEPIC converter input/output stages

Arrays, Signal Transformers Procurement Notes

Verify the specific package variant against the manufacturer's latest datasheet to ensure compatibility with automated placement equipment. Confirm RoHS compliance status and moisture sensitivity level requirements prior to final procurement approval. Cross-reference ordering suffixes to match exact reel quantities and tape specifications required for production lines.

Arrays, Signal Transformers Selection Notes

Select this component when space-constrained designs require dual-inductor functionality within a single footprint. Evaluate thermal performance under continuous load conditions, as self-heating affects saturation characteristics. Ensure the operating temperature range of -40°C to +125°C aligns with the system's environmental constraints and duty cycle requirements.

Arrays, Signal Transformers Part Context

This part belongs to the DRQ series of shielded power inductor arrays from Eaton Electronics. The series offers various inductance values and current ratings within standardized footprints, facilitating modular power supply design. The DRQ125-4R7-R specifically utilizes the 125 case size, balancing compactness with high-power density requirements.

Arrays, Signal Transformers Replacement Considerations

Direct substitutes include DRQ125-100-R and DRQ125-220-R from the same Eaton series. Verify pinout compatibility and electrical parameter alignment before substitution. Alternative manufacturers may offer similar form-factor arrays but require rigorous validation of magnetic shielding effectiveness and thermal dissipation capabilities.

Arrays, Signal Transformers FAQ

What is the difference between parallel and series connection modes?

In parallel mode, the inductance is lower (5.274 µH) with higher current rating (8.25 A). In series mode, inductance increases (21.1 µH) while the current rating decreases (4.13 A).

Is the DRQ125-4R7-R shielded?

Yes, it features a shielded drum core construction to reduce electromagnetic interference and magnetic flux leakage.