SRF1280-680M

Overview

The SRF1280-680M is a shielded dual-winding surface-mount inductor array manufactured by Bourns Inc. It features two coils with an inductance of 68 µH when connected in parallel and 272 µH in series, with a tolerance of ±20%. The component has a maximum DC resistance of 123 mΩ in parallel configuration and operates within a temperature range of -40°C to 125°C. Its physical dimensions are 12.50mm x 12.50mm x 8.00mm.

Feature Summary

• Magnetically shielded construction minimizes electromagnetic interference and radiation.
• Dual-winding design supports flexible series or parallel circuit configurations.
• Surface-mount package facilitates automated assembly processes.

Applications

• DC-DC converter output filtering
• Power supply input stages
• Signal processing circuits requiring low radiation

Procurement Notes

Verify the manufacturer part number against official Bourns documentation to ensure authenticity. Confirm that the specific suffix matches the required electrical parameters and packaging format. Check for recent product change notifications regarding material composition or manufacturing location updates before finalizing procurement orders.

Selection Notes

Select this component based on its specific 68 µH parallel inductance requirement and current handling capabilities. Ensure the PCB footprint accommodates the 12.50mm x 12.50mm base and 8.00mm height. Verify thermal management requirements align with the specified operating temperature range and saturation characteristics.

Part Context

This component belongs to the SRF1280 series of dual-winding shielded power inductors from Bourns. The series is designed for applications requiring compact magnetic shielding and multiple winding options. It serves as a standard solution for power integrity in space-constrained electronic designs.

Replacement Considerations

The SRF1280-330M is listed as a direct substitute within the same series, offering different inductance values but identical form factors and shielding characteristics. Verify compatibility with existing circuit parameters before substitution.