SRF1260A-330M

Overview

The Bourns SRF1260A-330M is a shielded dual-coupled inductor from the SRF1260A series, designed for surface-mount applications. It features a ferrite core and wirewound construction within a 12.5mm x 12.5mm x 6mm package. The component provides a parallel inductance of 33µH with a tolerance of ±20%. It supports an RMS current of 3.28A in parallel configuration and 1.64A in series. The maximum DC resistance is 61.8mΩ in parallel and 256mΩ in series. It operates between -40°C and +125°C and holds AEC-Q200 automotive qualification.

Feature Summary

• Dual-coupled architecture enabling flexible series or parallel circuit integration
• Shielded design to minimize electromagnetic interference
• Automotive-grade reliability certified under AEC-Q200 standards

Applications

• Automotive power distribution networks
• DC-DC converter input/output filtering
• Multi-phase voltage regulator modules

Procurement Notes

Verify the specific suffix 'A' in the part number to confirm the correct variant within the SRF1260 family. Ensure the selected component meets the required thermal management specifications for the intended operating temperature range. Confirm that the package dimensions align with the PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when high current handling and compact form factor are required for automotive or industrial power supplies. Compare parallel and series current ratings against the load profile. Consider the coupled inductance benefits for ripple cancellation in multi-phase designs versus using discrete single inductors.

Part Context

This component belongs to the SRF1260A series of shielded coupled inductors manufactured by Bourns Inc. The series is characterized by its robust wirewound construction and ferrite core, optimized for high-current applications. It is distinct from the standard SRF1260 series by specific automotive qualification attributes.

Replacement Considerations

Direct substitutes include other SRF1260A series variants with different inductance values, such as SRF1260A-100M or SRF1260A-470M, provided electrical parameters match the design requirements.