SRF1280-681M

Overview

The Bourns SRF1280-681M is a dual-winding shielded power inductor array designed for surface-mount applications. It features an inductance of 680 µH with a ±20% tolerance and operates within a temperature range of -40°C to +125°C. The component utilizes a ferrite core and measures 12.5 mm x 12.5 mm x 7.5 mm. It is suitable for high-frequency switching circuits requiring magnetic shielding.

Feature Summary

• Dual-winding configuration supports series or parallel connection topologies
• Magnetic shielding reduces electromagnetic interference
• Automotive-grade reliability certified under AEC-Q200 standards

Applications

• SEPIC converter topologies
• Automotive power supply systems
• DC/DC conversion circuits

Procurement Notes

Verify the specific winding configuration (series vs. parallel) required for your circuit design, as datasheets may list different electrical characteristics based on connection. Confirm package dimensions and terminal compatibility during PCB layout. Ensure thermal management aligns with the specified operating temperature range.

Selection Notes

Select this component when a compact, shielded dual-inductor solution is needed for space-constrained designs. Consider the 680 µH value and current handling capabilities relative to the target application load. Verify that the 12.5 mm footprint fits within the available board area constraints.

Part Context

This part belongs to the SRF1280 series of surface-mount power inductors from Bourns. The series offers various inductance values and tolerances, catering to diverse power management needs in consumer electronics and automotive sectors. The SRF1280-681M specifically provides a balanced solution for moderate inductance requirements.

Replacement Considerations

Check for direct substitutes within the SRF1280 series with compatible inductance and tolerance. Evaluate alternative manufacturers' dual-winding shielded inductors with similar 12.5 mm footprints and AEC-Q200 certification if availability is an issue.