DRAQ127-220-R

Arrays, Signal Transformers Overview

The DRAQ127-220-R is a shielded, dual-coil coupled inductor from Eaton Electronics' DRAQ127 series. It features a ferrite drum core and surface-mount construction with dimensions of 12.20mm x 12.20mm x 8.00mm. The component provides 22 µH inductance in parallel configuration and 88 µH in series, with a maximum DC resistance of 47 mOhms (parallel) and 192 mOhms (series). Rated currents are 3.98 A (parallel) and 1.99 A (series), while saturation currents reach 6.05 A (parallel) and 3.03 A (series). It operates between -40°C and 165°C and holds AEC-Q200 Grade 1 qualification.

Arrays, Signal Transformers Feature Summary

• Dual-winding coupled architecture enabling flexible series or parallel circuit integration
• AEC-Q200 Grade 1 automotive qualification for high reliability applications
• Shielded drum core design minimizes electromagnetic interference and stray magnetic fields
• High thermal stability supporting operation up to 165°C

Arrays, Signal Transformers Applications

• Automotive power supply circuits requiring compact coupled inductors
• SEPIC converter topologies utilizing the coupled winding structure
• DC-DC converter stages needing high current handling in small footprints
• Automotive electronics demanding AEC-Q200 certified passive components

Arrays, Signal Transformers Procurement Notes

Verify the specific suffix 'R' indicates tape-and-reel packaging when ordering. Confirm AEC-Q200 Grade 1 compliance is required for your automotive application. Check the latest datasheet for any manufacturing changes or PCN updates regarding package or material composition. Ensure PCB footprint matches the 12.20mm x 12.20mm non-standard outline. Validate thermal management requirements against the 165°C maximum operating temperature limit.

Arrays, Signal Transformers Selection Notes

Select this component when a dual-coil coupled inductor is necessary for SEPIC or similar topologies in automotive environments. Compare parallel versus series current ratings against your load profile. Consider the 47 mOhm parallel DCR for efficiency calculations. Verify that the 12.20mm square footprint fits within your board space constraints. Ensure the 165°C temperature rating exceeds your system's worst-case thermal conditions.

Arrays, Signal Transformers Part Context

This part belongs to Eaton's DRAQ127 series of automotive-grade coupled inductors. The series is designed for high-power density applications in vehicles. It shares the shielded drum core technology with other DR series parts but adds dual-winding coupling and automotive qualification. The DRAQ127 series targets applications where space savings and magnetic coupling benefits are critical.

Arrays, Signal Transformers Replacement Considerations

SRF1260A-220M by Bourns Inc. is listed as an alternative. Verify electrical parameters, pinout compatibility, and automotive qualification status before substitution.

Arrays, Signal Transformers FAQ

What is the difference between the parallel and series inductance values?

In parallel connection, the inductance is 22 µH with a rated current of 3.98 A. In series connection, the inductance increases to 88 µH, but the rated current drops to 1.99 A due to the winding configuration.

Is this component qualified for automotive use?

Yes, the DRAQ127-220-R is AEC-Q200 Grade 1 qualified, making it suitable for demanding automotive electronic applications.

What is the maximum operating temperature?

The component supports a maximum operating temperature of 165°C, allowing for high-temperature automotive environments.